My main issue with your fakes is their size. Seriously, they're waaaay too spindly and small for Pokémon. Let's take this guy:
Now, let's compare it to the Nintendo caterpillars:
Do you see what I'm saying? Just because a caterpillar is small and thin, doesn't mean that's what a Pokémonified version should be sprited like. The same could be said about the icy fox on this page alone, but I'll leave you to think about it.
Anyway, other than that, I think your shading and line work is impeccable, although your palettes are a bit strange in places. Maybe it'd be easier to give you help on that if your creatures were the right size :P
![[PokeCommunity.com] Kiryu's Sprites.......and stuff like that [PokeCommunity.com] Kiryu's Sprites.......and stuff like that](https://i596.photobucket.com/albums/tt46/Wildfire_Baku4/firebutteryflyprevo-1.png)
Now, let's compare it to the Nintendo caterpillars:
![[PokeCommunity.com] Kiryu's Sprites.......and stuff like that [PokeCommunity.com] Kiryu's Sprites.......and stuff like that](https://archives.bulbagarden.net/media/upload/5/57/Spr_4h_010.png)
![[PokeCommunity.com] Kiryu's Sprites.......and stuff like that [PokeCommunity.com] Kiryu's Sprites.......and stuff like that](https://archives.bulbagarden.net/media/upload/2/23/Spr_4p_265.png)
![[PokeCommunity.com] Kiryu's Sprites.......and stuff like that [PokeCommunity.com] Kiryu's Sprites.......and stuff like that](https://archives.bulbagarden.net/media/upload/2/26/Spr_4h_013.png)
Do you see what I'm saying? Just because a caterpillar is small and thin, doesn't mean that's what a Pokémonified version should be sprited like. The same could be said about the icy fox on this page alone, but I'll leave you to think about it.
Anyway, other than that, I think your shading and line work is impeccable, although your palettes are a bit strange in places. Maybe it'd be easier to give you help on that if your creatures were the right size :P