v1 is very washed out
Don't go for that look.. ever :P

v2 is much better
Althought the right side where the render is still looks washed out
IDK if this'll work or not but get a curves layer and use a black brush and brush over everything except for the right hand side on the curves layer.
You are now free to mess around and try get a more pleasing, less washed out look.
Or... if you did something like brushing white over the render or something you can just get rid of it that way :P

Text should just go IMO
Doesn't add anything to the signature in a good way.
Due to the white look on the left, the lighting is off.
If you can rid of the washed out look for the right hand side than helping your lighting will be much easier
I'd darken the left a bit more

So really I know from what I said it looks like you did bad but you didn't haha
I see that you have got here some really nice blending and flow as well as some pretty decent depth.

It really is just the washed out look that drags it down as well as the text
Apart from that it's just little nitpicks
So I do see improvement bro so KIU XD