The oblits are definitely cool, I'm all about the ridiculously-proportioned-weapon-festooned kitbashes of them, especially as it's infinitely cheaper that dropping 22.50 a pop!
Interesting choices with the Defiler, though I must say I'm not sold yet on chopping all spikes off. Yes, painting them is a royal pain in the arse and I certainly see the benefit of not having the "I CAN SEE IT'S SPIKE SO I'M SHOOTING IT WITH 30 LASCANNONS!" problem, but it's the character!
The skeleton in the cage and the SM in the claw are nice touches, I look forward to seeing the finished model.
Keep it up!