I like it, I like the whole picture and the light and fade to deep blue but then I am not one to critique... I just don't feel confident enough. I really do like the whole shot though.
I think this is beautiful. It's flow & contrast is spot on & I agree that I would like to see the ends of the tentacles too but I actually love the graduated colour change so personally would leave the bottom too. Perhaps this would be achievable as a more squared picture than rectangular? Just a thought, I'm no expert! [emoji4]