Pretty epic, mate. I should work on some stuff like that
I'd like to see Hulk get so pissed that he exits his physical body.
Instead of being powered by psychic energy or whatever, he's powered by ARRRGH FUCK YOU
Well you need a hdri image
Make a material diasble everything and check luminance
On luminance texture apply the HDRI image
After that make a huge sphere or a sky object(i prefer sphere)
Apply the hdr material to it
Put the renders inside the sphere
Select the sphere right click/ cinema 4d tags/ compositing
Disable cast shadows recieve shadows seen by gi and other stuff make sure its only seen by reflection
Apply a good global illumination
Add some reflective materials on your renders and render away