These are okay, but i think theres alot you need to consider if you want to inprove!
For example, the shading on the mew isn't coming from any one angle. It's just inconsistent. (the shading on the belly suggests light source being above but then you've shaded round the side of the face, but also under the ear on the opposite side, which conflicts with the two previously mentioned too)
You made Absols head rather too large, i know its a paint thing, and i assume you're using a mouse, but the fact that it's just too big still remains. I thought that from the second absol picture, maybe you were going for something like, looking down on it, with the absol looking up? In which case, you needed to draw the rest of the body as if it was from above too, it appears to be drawn from the side, thus being inconsistent with the head.
Just a couple of ideas and i hope they help you and that you don't find them hurtful in anyway. You have a good start here! please keep it up and i'm sure you'll progress! :)