So, technical drawing question here!
I've been working hard on getting real procedure into my drawings, sketching general forms first and using them as a framework to build off of to get proportions right. (The drawing class I took last year really helped, actually!) The thing I'm not clear on is how I move to the final step of cleaning it all up in digital drawing. I'm working with layers, but as nice as things look in the preliminary stages, they occasionally get all wonky when I actually try to do my nice clean lines on their own layer. (Proportions suddenly off, can't get the lines to match up with how good they looked the layer below, etc...)
Is it just a matter of practice, drawing and redrawing lines until I get the ones I want, or is there something I'm fundamentally misunderstanding in how to do this?