Nope.. this ain't gonna be the one.
Like alot of others have already suggested: completely none to nearly no flow is present.
The font looks dull, so does the texture.
Literally spammed brushes on top of it..
Overall: TOO MUCH HAPPENING.
You want to make it look soft and sweet, in the end, name signatures are advertisements, they should invite people, not scare them away.
I'd scrap the whole idea and start over, pick 3/4 colours and revolve around those, don't spam brushes like that again and stick to a nice piece.
Find a new, more solid font.. one that looks nice and proffesional, nothing too dull and nothing too extreme.
Make some lights that suit your needs, dont just throw something on there: stick to the 3/4 colour plan.
Don't use those huge brushes, they just swallow the whole idea of the signature.. they are way too big and way too bright, considering the main part of the sig is mainly dark.
Just.. redo it.. sorry to say..
This one ain't doing it for me.