Well, if you're looking for tips/feedback:
1. Your lineart is a little edgy, and certainly needs improving. This is fairly obvious in most of your drawings. Of course (I assume you use Paint), Paint does have many regulations on the lineart which makes it look very pixelated. The only real way to improve is by practicing over and over; you'll finally get to a good standard of clean, neat lineart.
2. I'd try differing the thickness of your lines. This would improve the overall quality of the art (I suspect).
3. Dip into shading. Shading is great to show light sources, and would again improve the quality of the art.
Having said all that, I love the humour in your art. This is mainly due to the wonderful expressions you give each character/Electrolyte pill, and so I would like to finish off this post by asking a request:
Could I please have a gurning Ludicolo? Thanks!