TBH the purple effects behind the render seem out of place they do not match withthe rest of the sig. Also the text is kind of off. For improvement I'd suggest getting rid of the text and maybe changing that purple to a different colour that blends more with the overall signture.
That being siad I love seeing people collab together.
Good job both of you.
Never really liked the ripple effect, suppose it works with the cartoonish render. Batman needs to be blended in a bit more, and the concept / composition isn't exactly nothing we haven't seen before, but solid none the less.