Practice with homemade charcoal

I am still working on my "sketch every day" challenge. When I play golf, which is usually 2, sometimes 3 times a week during golf season, that is where my daily sketch is completed. Since I made charcoal from willow sticks that I collected at Greenhills Golf Course, it is where I have been sketching with the charcoal. It is a challenge, as the charcoal is bigger chunks than I am used to working with. I am most comfortable with fine detail and working small. This is forcing me to work a little larger, and I think that is a good thing!
First 2 sketches below are from Saturday and Sunday last weekend. Last drawing was created yesterday morning at home using a photo as reference. I like the first 2 quick and free sketches better than the tight and controlled last one.  I had too much time to "think" about it, work at it, and worry about ruining good paper. FYI - 140lb watercolour costs $10 to $15 per sheet.
I think (or rather... I know)  I have more work and practice ahead of me, to be able to create the picture I am expecting to create.