looks really awsome b&w experiment with gradients and hue/saturation and photofilters and all those and maybe add some dots of color when you need it i used toreally really suck with coloring but ive gotten better
not bad looks cool..the effects are nice maybe try few other colours or so jus to see how it turns out..maybe make some lighting but it looks kinda fine withoud it so dont knw if u really need it. The c4d near the bottom is a bit oversharpend coz u can see the edges or maybe not cut right try fixing that
Looks a lot better in B/W. For coloring, experiment with gradients and photofilters, they're usually the best way to add color.