Ok, I normally don't get rude about bad spriting, but this is pretty bad.
First off, making an electric Bulbasaur and calling it Robomon is like calling Charmander Agumon.
Second, the coloring on them makes me want to watch DennÅ Senshi Porygon, just to get away from my computer and not have to look at how horrible they are.
Third, is the one thing every spriter on Pokecharms must stress, saving a sprite as a JPEG is like giving to a 3 year old holding a crayon, ruins it completely, not being able to be fixed at all. Always save your sprites as PNG if you want people to actually see and enjoy them.
I'm really sorry for you, and at least the last mistake was a common one I even made, but the first two are very very bad mistakes.