You mentioned your interest in species in another post, so there ya go:
This type of Phal breeding often starts with the
Phalaenopsis section (
Phalaenopsis, The Genus - Beginner's Handbook, XXIII), to which more colourful species are added; mainly lueddemanniana, amboinensis, gigantea.
Yellow plants arise principally from fasciata and venosa.
Was that Phal already "frilly" or is that a side effect from the keiki paste?
Growing keikis on keikis is possible and even quite common for some species, but I think food and water intake are going to be an issue at some point if you don't water the offspring.