Both of your signatures are at least 3x the size of your respective posts... I'm pretty sure I have both of them blocked at home, but I can see them here at work, and they are both pretty enormous. Can't you just use text links? Color, bold, and other formatting tags work in signatures (see mine for an example).
Realistically, very few people other than yourself will ever care about your characters enough to click on some gigantic graphic in your signature and go look at your characters' armory pages... especially your level 26 ones.