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2014 abs anthro athletic biceps biped black_hair black_nose briefs bulge canid canine canis clothed clothing digital_media_(artwork)domestic_dog eyes_closed fangs fur green_body green_fur hair hands_behind_head hi_res male mammal muscular muscular_anthro open_mouth pecs portrait pose simple_background solo standing stretching tail teeth three-quarter_portrait tongue topless underwear vallhound yawn zavryn