My tips for captions & text:
#1 - How much space for text?
If your text doesn't fit into the body of the image, look at your dimensions. Whichever edge is shorter, double the length of the image on that edge, and put your text to the right or bottom of the image. If you need more space, add the original dimension to the other side and spread the text on both sides of the picture.
This means that if you have a tall picture, you should double the width and try to fit your text on the right. If you have a wide picture, you should double the height and try to fit your text on the bottom. If you need more space, you can put equal amounts of space on both sides of the basic image. If the image is a square, or very nearly square, you can use either edge -- but I would recommend square images get vertical extensions for text.
Finally, I feel it is more forgivable to have images with tall text spaces than wide text spaces. In general, we western language users are wired to reach text in fairly narrow columns but across tall pages, so having a tall page topped by an image is easier on the audience than a wide page with text flowing all the way to the edge. Of course, at the same time, too narrow of an image (relatively speaking) can be awkward for us too!
#2 - What Font Settings?
Never type text if you can't see the full width or height of the image. If your image is too tall or too wide to fit on your screen, zoom it out in your editor until you can see it all. If it isn't clear, your audience will see it as an unclear mess. If your text is too small to read when the image fits on your screen, increase it until it is not only clear, but charp and clear! Reduce your word count if necessary.
For font, the options are wide -- I like to use handwriting style fonts for many of my manips, and I've settled on a free one called "Architect's Daughter" which is clean, has consistent angles, and looks decent for diary style or comic style text.
#3 - What to Say?
Don't waste words describing the image contents. The image already shows us the color of your character's hair or eyes, as well as the clothes or whatever focus you might be using. Every word you add for a caption is precious, so waste as few of them as possible. This doesn't mean you can't refer to the image -- but make it meaningful if you do.
#4 - To Color or Not To Color?
Colors can be very useful to communicate character identity, but not every image needs colored text. If you do use colored text, use colors that clearly connect to the character or characters -- hair and eye color are good options, though clothing can be useful too if that's more distinct in the image. Use colors with good contrast to the background, and if you can't do that, use some form of outline on the text. There are guides on how to use Layer Styles in photoshop up above -- using a high contrast text border can make your text more legible even if the contrast is good to start with.
#1 - How much space for text?
If your text doesn't fit into the body of the image, look at your dimensions. Whichever edge is shorter, double the length of the image on that edge, and put your text to the right or bottom of the image. If you need more space, add the original dimension to the other side and spread the text on both sides of the picture.
This means that if you have a tall picture, you should double the width and try to fit your text on the right. If you have a wide picture, you should double the height and try to fit your text on the bottom. If you need more space, you can put equal amounts of space on both sides of the basic image. If the image is a square, or very nearly square, you can use either edge -- but I would recommend square images get vertical extensions for text.
Finally, I feel it is more forgivable to have images with tall text spaces than wide text spaces. In general, we western language users are wired to reach text in fairly narrow columns but across tall pages, so having a tall page topped by an image is easier on the audience than a wide page with text flowing all the way to the edge. Of course, at the same time, too narrow of an image (relatively speaking) can be awkward for us too!
#2 - What Font Settings?
Never type text if you can't see the full width or height of the image. If your image is too tall or too wide to fit on your screen, zoom it out in your editor until you can see it all. If it isn't clear, your audience will see it as an unclear mess. If your text is too small to read when the image fits on your screen, increase it until it is not only clear, but charp and clear! Reduce your word count if necessary.
For font, the options are wide -- I like to use handwriting style fonts for many of my manips, and I've settled on a free one called "Architect's Daughter" which is clean, has consistent angles, and looks decent for diary style or comic style text.
#3 - What to Say?
Don't waste words describing the image contents. The image already shows us the color of your character's hair or eyes, as well as the clothes or whatever focus you might be using. Every word you add for a caption is precious, so waste as few of them as possible. This doesn't mean you can't refer to the image -- but make it meaningful if you do.
#4 - To Color or Not To Color?
Colors can be very useful to communicate character identity, but not every image needs colored text. If you do use colored text, use colors that clearly connect to the character or characters -- hair and eye color are good options, though clothing can be useful too if that's more distinct in the image. Use colors with good contrast to the background, and if you can't do that, use some form of outline on the text. There are guides on how to use Layer Styles in photoshop up above -- using a high contrast text border can make your text more legible even if the contrast is good to start with.