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ah its promising.. keep drawing.. it will get better and better with your every line.. by my advice is.. follow some artists from web (deviantart maybe).. then, try to copy works of artists you like.. day by day you will get better.. do it! : )

I know. It's just my passion, but I'll take your advice!
I usually don't give a second try to my drawings; the first sketching is also the final product.
I use to take a look at the original photos of the characters I want to draw and I try to find my own way to reproduce them. This drawing is an exception, there is no real character behind.