2018 5_fingers abs anthro balls beach biceps biped black_claws black_nipples black_nose blue_eyes blue_sky brown_eyebrows brown_fur brown_hair brown_tail claws cloud countershade_face countershade_tail countershade_torso countershading day detailed_background digital_media_(artwork) exercise eyebrows flaccid front_view fur hair humanoid_penis kangaroo kihu lips male mammal marsupial mountain multicolored_fur multicolored_tail muscular muscular_male navel nipples nude obliques outside pecs penis pink_penis pubes pull-ups sea seaside short_hair sky solo tan_balls tan_countershading tan_fur tan_tail thick_tail two_tone_fur two_tone_tail uncut url vein veiny_penis water workout