L.A. Artist Itkupilli's blog is chockablock full of free blog backgrounds, headers, accessories and tutorials. Many of them are straight up gorgeous, some of them have unusual and unexpected, even somewhat psychedelic, twists. If you like Marie Antoinette (era) motifs, there is a lot of that here, and tons of color. Especially pink.
There are links to her on-line shop full of digital images (collage sheets, design kits, scrapbooking) and her etsy shop, too.
What blogger doesn't love beautiful stuff that's FREE?