This is the Zerg Hydralisk from the game Starcraft 2. I wanted to build this for a while but didn't think it was possible. The Infestor, Xenomorph, and Gyarados I made showed me the techniques necessary for this.
Side view: [link]
I still have a few more pieces coming in to finish this off. I'll post more poses and angles when they do (and after Christmas).
I really like building Zerg now. I have a Zergling coming up next. Mutalisk, Ultralisk, and Broodlord are also very possible.
Happy Holidays, Everyone!