/ic/ - Artwork/Critique

I guess the question thread is appropriate here ?

I just picked this up from this summer, updated a few things here and there but now I really want to paint it. My question is, where do I start, all these lines and details bother me too much, should I reduce opacity to the max, work above the lines or hide them completely after a while ? should I start in black and white or just work with colors ? this feels very different from a study where lines were mostly there to indicate proportions.

also, I remember a Gif showing the process of a painting starting from lines on ic but I can't find it, any one have it ?