I love your choice of colour scheme, it really suits well with the gas clouds in the Sigmas. Really well done.
You get a 10 from me especially since this is your first try.
One thing I've noticed, though, is that I can't really see your last name in the sig. The colours are similar enough with what's behind the words that I have difficulty reading it. Might just be me, and other than that, though, it's a great first try.