Sorry, but these pics are bad. And you admit why they are. You do them in 10/15 minutes. Only time I do something in 10/15 minutes is if I'm recoloring a whole mess of sprites. And even then I take care to make them look good.
If you actually spent time to put effort and quality in your art, you would have something better than road killed pictures that are flat and poorly shaded.
The Dark Lugia is upside down- or does he have spikes on his belly instead of a patch of dark purple/black? The Pachi 'evo' looks more like a mutated dog than a squirrel, tbh. Have you even seen a squirrel?
The 'Metagross' thing looks like a hammer met a gundam.
The Absol evo .. looks bad. Sorry, just very bad. Like the hulk met the abomidable snowman or whatever. Yeti, that's it. Anyways, you put no effort into it really either. I mean fine, it's your art style, but that doesn't excuse you from taking blame that you didn't put as much effort or time into it as possible. Maybe if it was better drawn, it might be alright, but atm all it looks like, is an Absol version of Chopper. Only thing is, Chopper is cute. That's disturbing :/
The Flying Eeveelution looks warped, and well, has no body structure to it. The wings are also flat, shading is minimal at best. And the dragon ... Why are the wings on the butt? I know drawing is hard, but surely if you practiced more and spent more than 15 minutes on a drawing, you'd do something you'd actually be proud of? :/