This is worst one of the series, girl looks like sitting on nothing and she looks least beautiful of all. Generally speaking these pictures fallow a trend of fire themed pics being best, water close second and grass being worst. That's in my opinion of course. My very favorite is one with a water theme trough.

Shouldn't she be sliding off of the Bulbasaur? I can see both buttcheeks so that means she's not actually sitting on anything, the leg she has tucked behind him must be broken. Did you get your layers mixed up or something?

Her other foot is level at a side shot but her toes are cocked sideways. You even have the ridge of her foot cutting through that lineup of toes like they really don't belong.

The Bulbasaur's face is completely flat and why is he looking to the top right of his vision but not turning his head to face the woman?

Ok, this is seriously impressive. I love these pokemon pinups. You've got great talent, I cant wait to see more of this awesome style.