Book Cover Sketches

I chose to do Simon and Garfunkel for my book design project this week. Simon and Garfunkel were an influential folk rock duo in the 60s. So, below are my three different ideas for the book cover, back, and spine. I'm not sure which one I will go with yet (or if it'll be a combination of the three), but I know I want to keep it fairly clean and simple with a very peaceful vibe.