I have only one schroederae and the coloration and shape of the petals and lip are very similar to yours, including the reproductive parts. What mine does, and yours isn’t, is to roll down all three sepals. I have read that this species characteristically rolls the dorsal sepal, but mine does all through. My plant is supposed to be from a selfing of a tetraploid schroederae, but I have my doubts about the increased ploidy. Yours is much better than what I have been able to produce so far. The rhizome is also long on mine before the lead starts to turn up, which I don’t like.