Switching from drawing what you see to constructive drawing.

[lurch]

dodeqaa - thanks for coming back with that, some of the confusion in my mind is starting to clear a little now, good pointers to work this approach from life initially and then apply to ref, thanks..

punk-a-cat - thanks for the links, I hadn't seen drawabox so I'll check that out - I need to put a schedule together on what to work through first! I've been trying some of the proko stuff, but it just exposed more gaps so I've bounced back to perspective!

Thanks again for the responses, I'm gonna post up a sketchbook and try to work on the basics, hopefully make some progress.