I'll be putting up similar posts for each cover as they are released.
This basically takes you thought my process a little.
I usually start with a really loose sketch in blue to sort of block in my shapes and staging. From there I love onto a slightly tighter sketch in a dark red to get in all the details.
My last step is bumping up the DIP and doing a final inking pass with darker versions of the objects they surround.
Let me know what you think in the comments section.