3DS Max. Render with V-Ray.
Sky is from CG textures, thanks.
Extract from PXL rules:
UPDATED 08/2009): Recreating a source image from scratch in a 3D program is allowed, but it's required to post a step by step guide. It is always safest to post each action you did in your step by step guide, no matter what program you use. (5 years and 2034 days ago)