I like the eyes on 3! :)
Thank you :)
1 looks fab to me, Mish - and I think the 'dark tipped' spines look pretty poisonous to me; can I suggest that you now 'tidy up' this guy's long tentacles - you should think of them in design terms (and in anatomical terms) - they would actually be as uniform and tidy as the body spines - only longer - make them uniform, so even as they curl and entwine, they read convincingly as body-parts on the same organism.
So, more spikey and longer? I'll give it a go!
No - not more spiky and longer - I'm talking about the way you've drawn the tentacles themselves - they're drawn irregularly; you want to rationalise them so they all look convincingly like they're 3 of the same kind of tentacle. Imagine you're preparing this design as an orthograph for modelling from - you'd need to resolve those three tentacles into uniform parts of the creature's physical anatomy. Don't change them - fix them. Does that make sense?