Ted, you didn't only choose a difficult spot to photograph this couple, but the backlighting of the setting sun made it almost impossible to capture this couple well exposed. In such conditions it's impossible to avoid some chromtatic abberation too. Perhaps your intention wasn't to prevent this all, because your aim might only have been to provide us with a moody sunset photograph. If so, then you've done a great job.
If you think you can't accept something, try to change it. But if this doesn't work, don't be frustrated, but give it later another try. The one who perseveres wins!
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