i like this one a lot. it looks soft somehow, there are no hard edges except for that logo and i think that works really well
im not sure the bright cyan spots and the green line are my taste i think they dont quite fit into the colors of the rest
on the right side border that thin pink line is out of place but you probably just overlooked that
the render is really high quality, i like the picture
i actually like most of your sigs but this one especially so i had to comment

Thanks man, yeah im not sure if all the colors worked out okay.

This is probably the best, or close to it. I think the background is really good minus the pink spot in the bottom right. the effects are interesting and i want to like them but im not sure i should. composition is good, it kinda flows which is a nice change
soft brush on lighten doesnt pay off here, the characters face is completely lost when it should be a focal point of the piece.
the stamp is like 50/50, i think bigger might be better there? somethings a bit off, feels too separated from the tag when i look at the focal

https://color.adobe.com/create/color-wheel/

A great tool for exactly that.

decided to use an ass render