Laura, this is a nice grouping of branches. I think you could try for some more tone variation; especially in the midtone range. I see plenty of dark tones here, and your highlights are nice and shimmery (especially on the grayish branch at the bottom of the pile), but some more midtones would really round out this drawing. Especially on the top branch. I really like all the bumps and texture here.
Laura, this is a nice grouping of branches. I think you could try for some more tone variation; especially in the midtone range. I see plenty of dark tones here, and your highlights are nice and shimmery (especially on the grayish branch at the bottom of the pile), but some more midtones would really round out this drawing. Especially on the top branch. I really like all the bumps and texture here.