Go ahead and post a picture. Just be aware that how a latch looks on the outside doesn't necessarily tell you much about what it feels like on the inside- you can have a textbook perfect latch on the outside that feels awful on the inside, and vice versa.
Can you describe the pain for us a bit more? Does it happen at any time during the feeding- maybe during letdowns, or at the conclusion of a feeding? Does it happen after the feeding is over? Is it more of a stabbing or pinching pain, or more of a burning pain? When baby unlatches, are your nipples symmetrical like pencil erasers, or asymmetrical/wedged/ridged/creased/shaped like new lipsticks?