Hello !
I'm a 18 years old graphic designer who's fairly interested in your offer.
Here are some of my work, as you can see, the style is pretty diffrent as i try to adapt to what the game style (the link begin from the 'fcx'; just copy the url in your browser ;D - I had to remove the https because i can't post hypertext links yet.) :
Invasion, a Shooter Game (WIP):
fc05.deviantart.net/fs71/f/2013/109/5/d/5d2d1ba66567ae96a0ab6c4816d7af8c-d62bsxm.png
Isometric Tileset :
fc00.deviantart.net/fs70/f/2013/094/9/6/isometric_tileset_for_aetaria__by_drewstudio-d60emkr.png
Character design (from sketch to the final character):
fc09.deviantart.net/fs71/f/2013/167/5/1/commishartemis_by_drewstudio-d69ad4j.png
fc06.deviantart.net/fs71/f/2013/167/0/2/apreview_by_drewstudio-d69buej.png
fc06.deviantart.net/fs70/f/2013/172/b/7/presentation_by_drewstudio-d6a1ia1.png
fc08.deviantart.net/fs71/f/2013/169/6/0/sword_by_drewstudio-d69n8sx.png
If interested, PM me :3