what makes tech tech? errmmm i think you be missing like scanlines grid formation.. i give it a seven only cuz you should do more stff like the eye on other parts of body and like add small unreadable text like under the eye box... then itll look koo
for being a first its cool. Try different brushes, I only see like 3 there, also when doing a tech sig, try not to use a model but abstract. Will bring the sig out more. Just my opinion. Laters.
You should have used a tech brushes to fill up the empty space in the background. But overall I'd give it a seven.