military Robot concept art, inner mechanics showing, low camera angle, tribal warrior paint decal, tribal birate aesthetic, torn fabric, brown and black tones, black tones, dark tones, lab background, rim lighting, deep shadows, ((graphic novel sketch, black sketch lines, low-key cinematic lighting, thick ink outlines, digital oil painting, posterized, cel shading, vector illustration, tenebrism, bold brush strokes, subtle colors, subtle lighting))