Highly detailed vintage retro vinyl sticker illustration of a serene capybara sitting chest-deep in a wooden onsen hot tub, eyes closed in pure bliss with a content smile, a perfectly placed orange slice resting on top of its head, small yuzu fruits floating in the water around it. Intricate fur rendering with fine parallel hatching showing direction of growth, water ripples around the body with flowing lines, steam wisps rising elegantly with curling smoke patterns, wooden tub planks with grain texture detail, citrus fruit cross-section detail on the head slice. Bold curved arched text "OUTSIDE NOISE" above the capybara following a half-circle path and "I DON'T HEAR HER" curving below in matching half-circle, in bold condensed slab serif font. White background, professional black ink illustration, vintage engraving aesthetic, no border, no frame, isolated illustration centered composition.