My favorite children's spaces are unstudied and lacking a "theme." Easy, colorful, and kid-friendly:
P.S. (From Leigh): See more delicious eye candy over at Raina's blog, including the amazing transformation of her daughter's room! You might at first visit to get a hit of Raina's talent for posting gorgeous and chic inspiration photos, but you'll keep coming back for her saucy commentary and outrageous wit on all things decor-related. Luv huh.