I like it, but it is simple. Yet not every signature needs to be all wild with all kinds of effects added.
Get better texts from dafont.com Get a nice beginner tutorial from blacksungfx.com Try a pixel border or just plain black (Sorry if this is advertising, please take it out) Choose a better render and perhaps base the colours in the background with your render or just use effects to make the signature have more of a flow.
plain simple, BG is just apic you googled, the render doesn't fit atall and the text is horrible :S 3/10