1. The basic requirements of the picture are clear and bright, clean and tidy background, complete product theme, no advertisements, mosaics, random words, etc. The cover picture is the most important. If the first picture is not good-looking, please select the good-looking picture behind "Set as cover" first, and then carry out "thinning" operation, so that this cover picture will be displayed to the public. 2. The detailed requirements for the cover picture are (1). The picture must be the actual picture of the user, not the seller's display picture, the model shed picture, the unrelated product picture, etc. (2) The picture must have a normal composition, and there must be no phenomena such as flipping, skew angle, and the subject at the edge of the picture. (3) The pictures must be true, and shall not be excessively beautified, resulting in deformation, discoloration or distortion. (4) The main body of the goods is complete, which is not suitable for local close-up or detail display. The size in the picture is moderate, and it cannot be a picture of a carton or foam pad packed by express delivery. (5) When people appear in the lens, the face value should not be too low, the expression should not be gloomy and weird, and it should not be in a messy background or a crowded public environment. (6) On the basis of meeting the above requirements, exquisite, beautiful and atmospheric pictures are extra points.