I think this may be my favorite of the batch. I also think this is the same colossus that's on the cover of the game. The dude looks pretty badass. The play between light and shadow is really impressive here - on the one hand, you can't see a lot of detail, but on the other hand, you can easily imagine exactly what Valus would look like from the silhouette and the little detail James lets slip through. The "Valus" art print is available through James Bacon's Imagekind storefront in a variety of sizes.
Alright, maybe this one is my favorite - I can't tell anymore. I love that the "Gaius" art print so perfectly conveys the title's unique gameplay (or so I assume). I also really dig the cogs that make up the body of the colossus, it reminds me of a twisted version of the Iron Giant. If this artwork is any indication of the type of game Shadow of the Colossus is, I'm in for a treat. You can find all of James's art, including his "Gaius" print through his Imagekind store.
James also has some really great movie posters (I especially like his Sunshine and Hero posters). To find out more about the artist be sure to visit his blog, his design portfolio, and of course his store. FYI I just found out that Ico and Shadow of the Colossus are being re-released (in high-def!) for the PS3 later this year. Let the waiting game begin…