A beauty... good catch!
That's an Oncidium-group intergeneric (more than one genus in the mix) Impossible to determine exactly which one... various hybrids look similar. So it's one of the human-made genera (like Brasidium or Colmanara or... )Actually they have all been renamed so even harder to get it right even at the genus level. Fortunately all of the variations on the theme want the same care - kept more damp than a Phalenopsis (these should never dry out), and maybe a little brighter than a Phal.
As for the sideways photos, it's a "feature" of the ancient software that the Board uses. If you download the photo to your PC, open it in your "editor of choice", rotate 90 degrees, save, then rotate back and save again, it will likely be oriented correctly when you upload. But we're all used to turning head sideways...