Anna's signature file looks big, but it IS just 27K, right past the upper end of the limit that we like people to stick to. The total size for the images in your signature file should 25K or under, keeping in mind that some people have slower dial-up connections, and we do not want to keep them from being able to load the pages of Pet Talk! So with those images, for example the "I "heart" Border Collies" one is about 9k in size. So two would be fine, three would be stretching it, and four would be too many.

You might be able to make them smaller and combine them, which would make it a smaller file ...