Complete photoshop amateur here: tell me how to improve this signature

[Define:]

absolute lack of depth. use blurs to create depth for beginning
sharpend some areasand blur some, that will make it look cool
its too monotonish imo
red it overlaping the tag.
and the text is too big there, minimize the size of the font

Well I followed your advice, mostly. I added in shades of yellow, orangeish, red, and light red/pink to slightly kill the monotone, minimalized the size of the text, and blurred/sharpened the picture to slightly add depth. I do feel like I overdid the blurring/sharpening but this the result. Thanks for your input, KidBuu.