Overall, I think the pictures are pretty good, there's just a few things you can improve on. Firstly, your proportions could use some work, such as in one of your drawings, the houndour's head is nearly the size of its body, which is kind of awkward O.o
In addition to that, some of the Pokemon's limbs are oddly skinny, which just looks (no offense), weird, and are placed at odd angles. Some of the bodies of the Pokemon are also too long or too short, and it would look nice with just a small amount of shading, though I can't really say anything on that, because I don't know how you intended for them to be.
Now for the compliments. The coloring is very good, and very accurate, and most of your Pokemon actually look like Pokemon, very much unlike the twisted monstrosities that I end up drawing whenever I attempt Pokemon. If you just color more thouroughly so that no white spots show through, as Charizard EX mentioned, then as far as coloring is concerned, you're good to go.
In short, your drawings without doubt show promise (I mean, I am a good drawer, I just can't draw Pokemon.) I'm pretty jealous that you can draw Pokemon, but the thing that bugs me most is some of the limbs and proportions, so just keep working at it, I can't wait to see some more of your work, by the way, they really are very nice.
-Slyther
