Max 5, Brazil, Photoshop
Rendered in layers rather that one full piece. Lots of matte painting techniques used.
Lots of photographic stuff used for little touches.
EDIT: Wow 130 comments and 160 totally unpredicted favs
larer and i'd like to answer a couple of key Qs.
1) I work for Games Workshop HQ and was commissioned to
make an Ultramarines ship so that's my reason for the chaper (I know very little about 40K)
2) Sorry about the lens flare people. I shall have to release the full double size version without lenseflare and with less smoke for the fans.
Love you all!