I think the depth and flow are pretty good, I don't mind the ribbon, I do not think it makes the signature look any worse.
However it does look like you got your focal wrong to be honest by putting it infront of her face, but maybe you have done that on purpose, I do not know..
It is a pretty nice piece really.
Actually maybe you could have added a little more to the negative space on the right hand side, it just looks a little too empty maybe if some low opacity or dull effects were added.