I can't really tell but if it's mold free and smells good I'm sure it's fine. Then if the horses eat it we know it's palatable. What is it timothy/orchard grass? Of course a test will probably give you more info about protein and other nutrients and sugar.
It looks to be a pure grass type hay, so it won't test as high as a legume or legume mix hay. I'd say an rfv no more than 115 and a protein of around 14%. Doesn't look all that green from the photos though. The stems look a little finer than most 1st cuttings, so I'm going to guess 2nd cutting. Can't make any guesses as to moisture content though.
The appearance of the hay is at a disadvantage because it's put up in large squares first off. The hay has to have a lower moisture content to be baled properly so it's going to be down longer and subject to more bleaching. It also a variety of grass that most people don't feed or have ever seen. The leaves are red/brown so the hay is perceived has over mature or over cured when it's actually put up just right. It is a prairie grass (non irrigated) but it tested out lower than I would of expected.
If the price was right, I'd buy it without blinking an eye. I would make the analysis available and offer advise on what to supplement with to make it work. Most horseowners overfeed their animals and will reject it because it's not that bright Timothy green but that's nothing we can change. You can definitely market it as hay for an IR horse.