Against the backdrop of sunrise or sunset，(Silhouette of a man concentrating on

Against the backdrop of sunrise or sunset，(Silhouette of a man concentrating on work:1.5)，Symbolizes dedication and pursuit of excellence without being obsessed with results，((The artwork should transition from a black and white pencil sketch style on the left half to bright colors on the right half, Ensure seamless integration of the two halves，No dividing line, Detailed black and white pencil strokes on the left，The right side is filled with color, Create a fusion)), Excellent quality, Detailed background, The Art of Mathematics

(worst quality,low quality:1.4), (depth of field,blurry:1.2), (greyscale,monochrome:1.1), 3D face, cropped, lowres, text, (nsfw:1.3), (worst quality:2), (low quality:2), (normal quality:2), normal quality, (grayscale), skin spots, acnes, skin blemishes, age spot, (ugy:1.331), (duplicate:1.331), (morbid:1.21), (mutilated:1.21), (tranny:1.331), mutated hands, (poorly drawn hands:1.5), blurry, (bad anatomy:1.21), (bad proportions:1.331), extra limbs, (disfigured:1.331), (missing arms:1.331), (extra legs:1.331), (fused fingers:1.61051), (too many fingers:1.61051), (unclear eyes:1.331), lowers, bad hands, missing fingers, extra digit, bad hands, missing fingers, (((extra arms and legs)))