EL HUERTO by Mik Baro

Not clear on if this is a poster or an illustration from a book, but from what I can gather, it's an illustation of a child's dream (Dream by Lucía/ SPAIN.)  (more info/ illustrations here and here ... via Drawn!)

I love it because of the horse theme, the bold colors, and striking beauty of the roots/nerves/blood system contrasting with the body and ground.

Unnatural colors

Was looking up some reference, and stumbled across this stunning photograph- I just love the colors, composition and stark composition. Also the contrast of unnatural vs. natural (pollution).  Found at the We Can't Paint blog

Nickel Tailings No. 34, Sudbury, Ontario, 1996 by Ed Burtynsky