O.K., you need serious help. Your sprites are awful.
Trainers:
Right. When you make custom trainers, you should always make sure the parts blend in. Take, for example, the swimmer mixed with May (First section, in pink). The head is too small, and the sunglasses look awful.
Speaking of the sunnies, they're a good idea, but not very well done.
Map:
It would be fine if you used a kit. There are two avalible, and I prefer the older one. Also, I suggest you perhaps read a tutorial or look at some other examples.
Scrathces:
No, no, no, no, no. They're too flat, have boring poses, are stupid concepts all bar the Chimecho evo, and have AWFUL, ALL BLACK outlines.
The Jynx evo looks like a hooker with a love-heart shaped head. Sorry, but it's true.
I can't really give you any advice, because I've never tried them, other than to stop scratching until you improve. Start out with recoulours, revamps and mixes, then move on.
Pre-evo and Team Galaxy sprite:
If you didn't make it, don't post unless you have permission. What's worse - You haven't given the person who made them credit!
File type:
Do. Not. Save. As. Jpeg.
Save them as PNG. ALWAYS! It will make them look much better, trust me.
Final words:
If you ever want some advice from me, please, PM me! I'm not a nasty person (even though it may seem like it), and I'm willing to help. Just to clarify, though, I'm not an expert by any means.
And remember - You will improve over time of you listen to people's advice. I hope to see you in a few months as a very improved spriter!