here are 10 or so from imagination. i feel like i'm not using enough diagonals and even though they're probably 17 lines or less i think they're too busy or i'm not placing the lines properly. i'm hoping for some constructive criticism before i do the 10 studies but if not i'll probably do them soon.

I think this took too long for me to draw. I guess that's my line confidence that needs work but i'm going to make a bunch of these, probably sloppily, without color variation in my sketch book. That way i can quickly practice it over & over.