Artist: This guy (source).
Full gallery: http://imgur.com/a/2jtOG
Stashed in: Images!, Photoshop, Surfing Awesomeness, Water!, Tasty Waves!
Amazing. BTW, looking at other pics from artist. This one is from Half-Life Lost Coast.
Wow, Greg, those are GORGEOUS!!
Just an underwater hippo.
OCD OpsBoy has been here...
FACT: Obama loves Halo.
Ryan Hipwood surfing on the most unpredictable and deadliest waves off the coast of Western Australia