Whoa, this is coming along brilliantly! LOVE all the fine details, and although on the zoomed out version you can't see the fine, fine details, it comes together as a whole brilliantly. At first glance, the colours look a bit out of place, but once you stare at it for a bit, it kinda gives it that deadly, rusted outcast look.
Also, I have, pretty much, an unofficial phobia of jellyfish. I live in South Australia, and in the winter at Robe, the beach is sand on the beach is BLUE with dead bluebottles. But they're tentacles can still kill you. Gotta love Australia, home of some of the world's deadliest creatures :D