She's cute STG! I've met a few gypsies in real life but never one of pony stature, adorable! I don't think you are too big for her at all. While not now, I have been 200 lbs, even when I was I frequently rode a student's haffie mare. She took up enough of my leg for my cues to be efficient and certainly had the bone structure to handle the weight.
For me the biggest factor in judging if a rider is too heavy (after horse stature) is HOW they ride. I'd rather see a 200 lb well balanced, good rider than a 120 lb sack of potatoes flopping around and the horse would appreciate it more too. Dynasty is only 14.1, about 980 lbs, my hubby weighs 220 and rides him with no problem. Had a toothpick of a friend (she's 5'9" and 110 lbs soaking wet) ride him and it didn't go as well as she had not rode before and was constantly shifting weight & trying to maintain balance. He didn't misbehave but was quite confused as he assumed every time she shifted her weight he should respond with the movement I'd expect of him with planned subtle weight shifts.
Fell - I'm still waiting for you to ship Eva Diva to me