Parking ticket advice aberdeen?

I received a parking ticket which i appealed and have since had a letter back showing photo's of my car parked which are different from the ones i took. i had parked here a few times but when i got the ticket i took photo's before i moved off. i don't know if the photo's were altered but they show my car in a different position?? is it worth fighting this or do i have no chance? its the word of me and my wife against them, how do you argue with a photo?