I would like advise few basic things for people who are posting the photographs of their palms..
1. Avoid using a flash. Try tho take picture in daylight conditions.
2. Post picture of both palms. Thumbs should be clearly visible.
3. If possible, try to add the pictures of the back of the palms.
4. Try to give a feedback on the readings so that the person who is posting a reading of the palms can also improve.