I like the ovations at my barn but I had the same problem with my IRH. I ended up recently buying a tipperary eventer and I LOVE it. Super comfy, no bubble head, my ears FIT, I can wear a pony tail under it. Only down side is they are not a 'classical' looking helmat and that they don't have much of a brim.
Awesome shot!! Beautiful horse.
I know you might not want to hear this, but I would be careful about how you adjust those straps to be over your ear. In my training for fitting helmets, this wouldn't be okay. Ideally, the slide guide should be directly below your ears, not behind them.
Here's a pic that shows what I'm talking about.
Rest assured, when helmeted we all feel like Dumbo the elephant. You're not alone. A male judge isn't interested in your ears. He may appreciate bouncy boobs or a chunky behind but definitely no ear interest. If a male judge of a different persuasion, he's not interested in you at all.