"I see," said the blind man...those bushes that ground the image so well also obscure the amount of space between the Crape Mertle and the wall. Not sure darkening the "artistic" shadow would help with that...maybe something else entirely to set up distance between the two?
Anyway, really nice image (you know it's good when folks get picky with the details π If you have any good links for Sears homes please share. Here's the best of what I found, but I'd like to have some sources for specific details, materials, and etc. (I haven't been able to find an image of "oriental asphalt shingles" among other things?):
http://www.searsarchives.com/homes/byimage.htm
http://www.antiquehome.org/House-Plans/