There are a couple of dinosaur related pieces that the artist Simon Stalenhag has done, as well as some really imaginative robot related work. All in all a nice dark style with moody forests and the suggestion of tense situations. All the images below came from his website, where you can visit and view more:
Instead of flooding the main blog page with huge pictures, click the link below to see the rest that I chose from his full collection.
Dinosaur Cowboys - Tabletop Skirmish Game 