Not bad at all, very likable. I find it somewhat reminiscent of the Sathanas Juggernaut, which is no bad thing. A suggestion, if it is to be a Shivan vessel - try temporarily re-skinning it with a few textures from a Rakshasa or Moloch and see if that helps it look a little more 'authentic'. Perhaps that might help identify tweaks to be made to your own skin for the vessel which you can incorporate into your design.
The thick red spikes on the engine compartment do remind me of a dog-collar which is probably not what you intended! Might I suggest trying longer spikes, grey in colour and swept back, similar to the look of the Moloch? This might busy-up the connection between the engine compartment and the body of the beast, which at present I think is a bit too Terran in design. YMMV!
I love the thin spines in two groups on the body, they look great! I have this fantasy of them organically waving back in forth in line as the ship moves, a bit like a cuttlefish's fin or something similar..
Of course, you can always just cop out and make it look like another bug...
Great work, I look forward to any developments with this model!
