Pics on Horse without Belly Fat

How do you get good pictures of yourself on the back of your horse that will hide any belly fat?  I hate, hate, hate pictures of me on my horse because of that but I want pictures of me on my horse!  I'm losing weight but after four kids and struggling with thyroid disease, I'm not sure I'll ever get a flat belly again!  I need to look up how to burn belly fat!

Maybe by spring, I'll have lost what I want to lose in weight and won't need to worry about it.  I can hope anyway.