1.) Work on the flow and coloring of the signature. 2.) Make the brushing less random. 3.) Increase the size of the picture. 4.) Work on text. 5.) Add more color, spice it up. Keep working, those are just my opinions.
Definetly make a flow, the randomness ruins the whole tag. And the gray effects don't match the colored render.
Lebronnnnnnnnnn. Not feeling this one at all. Bad background, and horrible c4d or whatever the hell that thing is. This one doesn't flow, sorry. Keep working at it bro.