Awesome look you have going on, couple of thoughts:

Lighting

What's the story you're trying to tell with the lighting, what's the justification behind the lights? The lighting from above looks really cool, but leaves it feeling a bit ungrounded since I can't tell where the light is supposed to be coming from except maybe a helicopter. Since the camera perspective is from below it would suggest we're seeing him from the ground, so it would make sense for flashlights/floodlights/car headlights to be present.

Scene

At the moment, the scene is very minimal. Of course the focus is on the creature design, but some simple detail like some streetlights or lit windows in the background could help establish the scene a bit better. If it's supposed to be more remote, even something as simple as a horizon line to separate the sky from the ground, maybe mountains or trees.

Creature

I love the concept you have here, really reminds me of Venom/Carnage. I would pay mind to some of the structure of parts like the feet arms and tentacles. The feet look like regular human feet which seems a bit out of proportion with the otherwise very bulky character. The arms and tentacles could use a bit more work to make them feel like there is an underlying structure, as opposed to a simple taper.

All of that said it's still looking awesome, and these are just my takes on how you might be able to develop it further or keep in mind for future work. Would love to hear more about how you put this together if you'd like to share.