Picto's and illustration (sceneries) for educational project (children from age of 5)

Mediaheads is a dutch software studio targeting the educational (app) market. We've created several platforms and app which are used at school. We would like to hire an experienced designer who can 1) design around 50 picto's or so called "Pecs" (more detailed picto's) for us. 2) several sceneries (playground, farm) in which the pecs will return. Children have to look at the scenery and pick or point at the pecs they see in the projected image 3) Design the interface of the application The content will be used in apps and a device (hardware table) which is developed especially for disabled children (more details will follow). The project can lead to an extension if the result is approved. We would like to start small (so with the design of the pecs (1)). If things goes as planned and everybody is happy we can continue with 2 and 3 (scenery and interface design). If you can meet the quality of the included image and are able to proof it then please contact me. If you need more information please contact me @oDesk :)