I've been drawing in such a consistent style recently that this may seem strange, but I had an impulse to do something completely different. I remember hearing an interview on the Escape From Illustration Island podcast where an art director talked about style, and how having a consistent "look" to your artwork helps an art director know what to expect from an artist, especially in a project with a quick turnaround. A big shift in an illustrator's style might in fact make them less employable. On the other hand, don't illustrators need to be able to grow, develop new ways of doing things or else risk becoming stale?
Do you struggle with "finding a style"? Have you ever been through a style change? I'd love to hear your thoughts about style and consistency.