Hi Zhuli,
Have you thought about maybe trying
kontera ads for your blog.
Unless your blog is completely niched out, the ads for blogs arent very good.
If I had your artistic talents I would definitely setup a t-shirt shop.
spreadshop - Google Code
demo
Mercatino Tassoman » Blogging humanum est, tuttlog Tassoman ovest. » Il tuttlog di Tassoman
Good luck