yes, you can dp as long as it is with new sprites.
the new charmander is WAY better, i think it's just about right now... prehapt put a pixel or two more to separate where it's back is from where it's tail is?
the water charmeleon is pretty good for a first fake. the foot on out left needs to be facing sideways, like on the charmander, so we shoud only be able to see two claws on it, possibly a little of the third. the jaw doesn't look entirely connected, as we can't see where it's mouth ends, so you should take away one of the teeth. the fin on the back, seems too thin on the end, so you should either make it thicker, or remove the really thin bit. there needs to be more pale colouring on where it's forehead is, ans where it's snout is, a sort of figure 8 shape, but smoothed off of light colour. that will define where the head shape is. with the light round the edge, it looks too flat. by the darkest colour, the outline needs to be black, or a much darker blue, like on normal sprites.
ok! that's it, i think! good job so far!