A blue hour night scene oil painting using blue colors and shading, in the style of Norman Rockwell, low angle, mid-shot, photo realism, four young muscular men with tattoos bonding nude, scene: an onsen pool, steam rises from the water, background features a Japanese-style courtyard and a cherry blossom tree, night sky with radiant moon and tiny bright stars, overall mood is playful and intimate, captures a sense of community and bonding. blue hues, muted color palette of royal blue, navy blue, cobalt, cyan, sapphire.