A lot of these are interesting. But one thing is standing out on many that I am not liking. White monochrome secondary uniforms. I can understand all-white for a primary jersey ala Real Madrid or the LA Galaxy. But as a secondary uniform, it just screams laziness and off-putting to me. And this happens way too much in current day MLS. It is just something that I probably won't ever accept.
As for the Orlando designs, I think the whole thing would look 100% better if you swapped the socks from the primary and secondary uniforms.