Ooh, we've got quite a talented one here n_n
These fakes look really nice, and the tiles aren't half bad either. Here's a bit of crit, though.
On Serpeel, I think the outline of the head towards our right makes it look disconnected to the rest of the body. I also think, concept-wise, it's slightly plain which detracts from it's quality as a sprite as it's pretty simple. Regardless, the lineart seems nice, not jaggy, and the shading (and colours, at that) is real nice. My only other qualm with your work so far is the Cardibble line (unrelated to spriting, isn't that a bit of a mouthful of a name?), except from the first stage (i.e Arinal), which seems to be the best of the bunch. The problem with Cardibble is that the wing which is held up clashes with the head which makes it slightly hard to read at first, and it just looks like a pretty awkward position. I think lowering it a couple of pixels would help a lot. As for Stravian, it's good, but neck looks pillow shaded in some places and in relation to the rest of the sprite's pose, the part on our left looks off, orientation-wise.
Still, keep up the great quality work, dino, I'm lovin' it no McDonalds references intended.
