cute 21yo beauty , (elegant, beautiful face), transparent white silk dress,  (freckles:0.8), 

A necklace with "SD3" written on it，professional model pose,head and shoulders portrait,

(intricately detailed, fine details, hyperdetailed), raytracing, subsurface scattering, diffused soft lighting, shallow depth of field, sharp focus bokeh, (realistic photo quality:1.4)