This is okay. for a first attempt not bad. However i think you should try and fix it up a bit. First off that green doesnt rly blend with the rest fo the sig at all and seems to be pretty bothersome.

The smudging is okay. rly lacks detail though. I suggest you try a tutoria or two on smudging to get more of a feel for it.
Startw ith a big brush, smudge, and then move your way down to smaller and smaller brushes to keep the details, instead of gettig a flat smudge.

The etxt is okay but could use a different color.
ALso when smudgign i'd say almost NEVEr lower the opacity of the smudge.