Illustrate a kids game about aliens

We are a small team developing kids apps. We need an artist to illustrate an educational game for iPad and Android. Workload: 162 PNG images, of which 4 are 1000x750 backgrounds, 12 icons, 8 characters (about 2 poses for each) and the rest are various objects like trees, vegetables etc. used in the minigames. In addition to that there also 2 tilesets for maze minigames, each with about 50 images. So, in total there are 262 PNG files. Vector or Photoshop - doesn't matter. The graphical style should probably be close to the other games we already have: [login to view URL] but that's optional. In general, the style should be appropriate for kids games. Please check the attached zip file and the [login to view URL] file for more details about what exactly you have to do. I've already built the whole game with stub graphics, so what I basically need is to now replace the stub graphics with the proper ones. Game download links: Windows version: [login to view URL] Mac version: [login to view URL]