Thanks for the comments, but I guess I should have been more specific: I am not looking for a program that does all the work for me (would be nice though...), and realise that it may even be more work than to do a painting! Still, some paintings must be more geared towards technical matters such as cars and others more towards biological shapes. Surely some are better at, say, creating skeletal shapes with attached meshes or at producing smooth convincing walking movements than others?