My first reaction to that last photo is that it's a very nice Pink Panther or similar hybrid. However, given the source and the fact that you mentioned it's a tiny plant, I assume it is correctly labeled. Very interesting outcome!
I won't pretend to be qualified to comment on the actual ID or taxonomy of "fischeri". However, my experience so far is that I've never encountered a fragrant fischeri where as schlimii is almost always fragrant. And it's a similar situation with their primary hybrids. Schlimii hybrids often have at least a faint rosey/sweet/floral scent, and pretty much no fischeri primary hybrids that I'm aware of, except perhaps those made with other fragrant species, seem to be fragrant -- though I'd actually love to be wrong about that if you know of any exceptions.
Of course, there is strong selection bias in cultivated plants, and fragrance/scent can be very subjective, so it's hard for me to know if it's actually relevant in terms of determining the classification.