One of my pictures has been rejected recently due to the following reason: “Please, pay more attention to the skin and fingernail appearance of the model. Skin imperfections need to be corrected in post-processing in an unnoticeable way. When the model's hands are visible, ensure that the fingernails (and the skin around them) are aesthetically appealing”. It’s was funny. But it is a good lesson.Thanks to Dreamstime this person gets a free manicure: