Yay! A subject that isn't as boring as the rest :)
Just a few minor technical suggestions. What's the blue line in the background? The crop seems a bit too tight on the sides... maybe leave a bit more space on the left side. Also, need more dof. It's annoying that most of the creature is blurry. Would like to see at least the front half in focus. This is a scorpion, isn't it? Doesn't look like a lobster to me *grin* Nice job coming up with something different from the majority of the boring neon light shots.
I don't know how you got that glowing green; I don't think it was real neon, but it has that effect. The capture and the composition are great - I like the way the tail balances the rest of the lobster.
Urgh... I'm scared!!! Good subject. I sugest to use more DOF to get all the subject sharply focused. It's dificult to do in macro. But this is the challeng! Good Luck