We've added a selection of new avatars, largely contributed from a recent avatar contribution drive, to the standard collection. You can find them all helpfully indexed under "Brawl 2" (we should probably re-categorize the avatars too, but one step at a time), even though not all of them are Brawl related. You'll also note we're missing some of the newer characters, but we figured it would be better to finally upload what we had already prepared rather than wait on new avatars.
On another note, I've been inundated recently with PMs about certain signature issues. At the moment our policy is to disallow images in signatures of users who have not yet been particularly active. We do this to discourage abuse of signatures among newly registered accounts, but users who have been around for a short while will gain this ability automatically. So, if an image isn't showing up in your signature because you don't have permission to use IMG tags in your sig, this is most likely the reason why. We appreciate your understanding on this matter.
On another note, I've been inundated recently with PMs about certain signature issues. At the moment our policy is to disallow images in signatures of users who have not yet been particularly active. We do this to discourage abuse of signatures among newly registered accounts, but users who have been around for a short while will gain this ability automatically. So, if an image isn't showing up in your signature because you don't have permission to use IMG tags in your sig, this is most likely the reason why. We appreciate your understanding on this matter.