This is 3/4 various Brassia species and 1/4 Odontoglossum (or Oncidium, or Miltoniodes) cariniferum. It is going to look and act like a Brassia. Officially it is Brassidium Pisgah Recluse now. It should do fine under general Oncidium intergeneric conditions, or treat it as a Brassia.
It seems to have a climbing habit, so it might be a good candidate for mounting, or pot it deeper and remove any back bulbs that would be completely buried. A more open well draining medium might tempt it to climb less, so sphagnum might not be helpful.