Yoshitomo Nara.

I brought a book of Yoshitomo Nara's postcards a couple of years ago and he has been a favourite of mine ever since. Yoshitomo is a Japanese Pop artist and his work is cute, scary and cheeky all at the same time. I love that many of his characters are so innocent but then out of the blue one will be smoking or swearing at you. You can see more of his work here.