anthroback_wingsbatbdsmbipedbondageboundbrown_themedigital_media_(artwork)hands_behind_backhands_restrainedhands_tiedhi_resinterkoskneelinglooking_backmalemammalmembrane_(anatomy)membranous_wingsmonochromemuzzle_(object)orange_themeportraitrestrained_armsrestraintsroperope_bondagerope_harnesssketchsketchysolospread_wingsthree-quarter_portraitwarm_colorswings