1girl, all_fours, ass, barefoot, bikini, blush, breasts, cleavage, crossed_arms, earrings, elf, embarrassed, flying_sweatdrops, from_side, front-tie_bikini_top, front-tie_top, half_updo, highschool_elf_(nakahira_guy), jewelry, looking_at_viewer, looking_to_the_side, monochrome, multiple_views, nakahira_guy, navel, original, pointy_ears, ponytail, side-tie_bikini_bottom, swimsuit, wet