Both confidence in the name & to a lesser extent - flower quality. I don't recognize the orchid grower who uses the initials OE in their cross codes. There is no formal 'registry' it is just that commonly the breeder uses either their initials or their company's intitials to create a code number to track a cross. Anyone else know who uses OE as their code initials?
About flower quality, Don't get me wrong, your flower is quite nice. I would happily keep it. Your flower seems good enough to breed with if you select the other parent to compliment your flower's strengths and balance its weaknesses. I don't know the natural spread, but you could cross it to something with similar color and larger size. You could pick a second parent that has a larger & rounder dorsal. You could pick a spot free but deeper colored parent to try to make more smooth vini's with no warts. You could go with a 'JAC' type Peacock flame as the other parent, to pick the spotting back up and add more size and that rose color. The list goes on. There have been so many vini maudiae type hybrids made over the years, for the judges to award one, it really has to be good. Sadly, not much of the variety that was available a decade ago is in circulation these days. Right now most of the seedlings I have seen for sale, one way or the other use Macabre. If you can find one of the old breeder clones to use, like Valentine Voila'. Which used Paph mastersianum in its ancestry - you might bring back a line of breeding that I liked in the past, but has seemed to fade away.
At any rate, don't cross your plant to just anything you happen to have in bloom. It is expensive, takes space, and lots of time to bring a seed pods worth of seedlings up to size. Really choose the other parent to accentuate your plant's strengths and to balance its weaknesses. If you do that, you can make a lovely cross.
Switching to my encouragement hat, I know when I first got started - I did a cross with the first two plants I had in bloom (Odm bictoniense x Onc. hastatum). Raised a bunch of seedlings, and 8 years later realized I had a unique step backwards in Odcdm breeding. Actually did successfully get wonderful vivid colors on the flowers. But all 12 of the seedlings I did bloom out had smaller flowers than the bictoniense, and fewer flowers than either parent. But they were vivid deep red & purple & brown star shaped flowers with narrow petals and narrow lip. Except for color, all other characteristics one uses for show were not as good as either parent. But I loved every minute of it, even the disappointment with flowers quality. SO what ever you do, enjoy it, and enjoy the learning experience.
Leo