lol well his current just needs a few touch ups and it would be one of his best sigs.

I would have to say your colors and sprite are the only really good things about this. There's a few ways this sig can be interpreted.

One as your sprite is in an enviorment or 2nd you burshed all around it.

I first took it as an enviorment. This made me think your rhino was in the middle of a water fall and getting sucked away.

As for brushing it looks dead. Vary empty and something (which is the render) just slapped in there.

Normally for such a small sig no one has this trouble for you normally need all the space you can get but your render is so small your enviorment is empty.

Also your text is just odd with just an R. While the color of it goes well R by it's self with words on it also makes the sig look empty and the cluttered in that area.

It's just to empty. Try to get mroe in it, and if your wanting it to look like something other than just brushing, try adding more stuff like land, rocks or something like that. If just brushing then there's a lot of work to be done.