Hey man, I was looking at your work today and I see you want some tiles and stuffs done, can probably help with that although it is tricky since you have maps inserted so that would mean if I inserted tiles I would have to correspond with everything in your game already otherwise you would have to redo most of your maps and that takes a fair bit of time..
I am still a newbie at pixel art I have done bits and pieces and today I did a some trainer sprites, well I meen if you are interested give me a shout back.