These are neat.
Constructive criticism though: These are kind of lazy. You should try designing rugs around the pokemon sprites that match the pokemon, remove the white background (this might be tedious because sprites usually have 'noise' pixels around them, but it can be helped by using partial transparency in the sprite), and then put the pokemon sprites in the rugs.
As an example, Charizard is a fire type, and is a third evolution. So a larger, red, intense-looking rug could fit Charizard really well.
Another example, Bellsprout could benefit from a dark green based rug, with subtle vines around the sides to add variety.
Just try mixing it up a little is all I'm saying! These are still nice though I'm definitely not trying to hate on your mod!