William Smith works at Timegate Studios, who have previously been responsible for titles like Section 8 and who are now helping Gearbox out on Aliens: Colonial Marines.
He'd previously worked in advertising, for respected international firm Saatchi & Saatchi X. And his artwork is just lovely.
Enormous killing machines are normally shown as being dreary, dreadful things, but Smith's colourful art gives them a clean, almost cartoon-like appearance.
To see the larger pics in all their glory (or so you can save them as wallpaper), right-click on them below and select "open in new tab".