(Self-indulgent Sketch) The Beefy-Back of Mio Akiyama (Patreon)

I often say to myself, "I really should draw muscly backs more," so I figured I should just go ahead and draw one now. Mio my muse is always a good candidate for me to try things out on. I hope you don't mind this kind of Self-indulgence.

PS
Not my boat.

EDIT: Now with proper scanned image file!