Yep you've pretty much hit the nail on the head, I'm not bad when there's a model or photo in front of me, thanks for the kind words by the way, but original creations are causing me issues, troublesome since my ultimate goal is to concept my sci-fi characters.
My thoughts was that I just haven't done enough practice, I'm not the sort of person who can sit around with a sketch book doodling, despite best intentions, so I've not got a bank of things built up in my head to draw on.
If you have advice to offer it would be very much appreciated.
