Nice colors but the slashed transition between blue and yellow is confusing. Try to fade it by erasing the edges with a soft brush at low opacity, to make it look more natural.
The text should be closer to the focal, and try to make it a clip mask or change the color to something that goes with the render.
You got good effects and a decent depth. The left side is just a little empty, try adding c4d's or smudge it some.
Good outcome and thank you for following my tut ^u^