I've been working on children products for several years. Here's a selection of illustrations made for books, CD-Roms and card games.
The first few illustrations were made with traditional medias: coloured pencils and watecolour. Recently I've been working entirely in Painter and Photoshop.
These softwares are great at simulating traditional medias, with the advantage of keeping a good colour control before the output process.
Moreover working on computers with a tablet is often faster, a primary requirement when working for clients.