High-definition, (bust: 1.5), (long-sleeved blue professional shirt: 1.5), professional photo, elegant, elegant, artistic, super confident, elegant expression and smile, blurred American light gray color smudged mottled background paper: 1 piece, blurred background : 0.5, vignetting, strong light, high contrast, contour light, studio shooting, occlusion light and shadow effect, strong shadow, backlight