Line Art

So in response to one of the tutorials I uploaded a few days back was that for concept art what people love to see in your portfolio is line art. This is not something I do very often, but if I was to get a job a junior artist its likely I'd be building detailed line art of a senior artists block out to start with, so I've decried to do some attempts, I'm hoping going the Imperial war museum will help me get some sources for exposed mechanics and the like.

Plan to upload a few more. I'm mainly using a quick low opacity block out as a starting point, although I think should be more neutral with backgrounds as this time it has obscured the original blockout.