As a good sprite rater, here goes the rates.
The recolors are nto that bad, it's just that it needs more flexibility and more interesting parts on it like that Kakuna, you can make a change on it. It's base color is 1 but you can make 2 color schemes out of it. And work on the shading a bit.
Fusions, leave some black outlines. Don't recolor the whole thing, that's a tip to make your fusion sprite more of an official sprite. And re-shade the Turtwig, Phanphy fusion.
The eggs need more "OOZE" on it. Like add more parts to make it look Darkrai-ish..
Devamping is re-shading it to Gold/Silver/Crystal and has to have Black outlines. As for yours it doesn't look like one, it looks like the official one except different shades.
For the revamp, re-shade it to look like the D/P/P Sprite of Pikachu. RE-SHADE!
Well those are the rates, you are one heck of a spriter i say! Keep on trying till your the best ever!