Children Cartoons Illustrator for iPhone-Android Apps

We are an independent publisher of iPhone / iPad / Android games for children. We're looking for an illustrator who would work for us as a contractor on a recurring basis in the middle / long term. This would involve designing for us, depending on projects needs, 2D characters and background screens for some of our games. Requirements : - at ease with 2D cartoon style - vector drawing (preferably using Adobe Illustrator) For one of our most important project, you would need to draw in an existing graphic style (cartoon, primary colors, children drawing). The relationship would start by ordering you 8 DRAWINGS. 4 of them will include a background and a character. 4 other include only a background. Each drawing is 1024*768 pixels (iPad's screen size). For now, please send us a quote for this initial assignment only (8 drawings). When applying : please send us links to 3 cartoon drawings in your portfolio (ideally vector drawings).