Answer:
Is it Imagine Me and You? I just googled it correct me if I'm wrong
I recommend avoiding details and shading the piece until its fully sketched in
you can blend charcoal with a piece of tissue if you use your fingers it will leave prints
if you are in the process of shading place a piece of paper between your hand and the paper to avoid smuging
you can use a slice of bread to remove the graphite like a stretch eraser
So you can find which type of photography you like best