Rlc Chia Lin is a very popular Cattleya parent these days with 100s of registered progeny and tons of awards.
Typically, crossing a yellow Cattleya onto a dark Cattleya adds depth to the color of the dark one since the yellow coloration is normally not dominant. In this case I would expect highly scented large flowered bright dark reds with full round shape to predominate. See for an example, Rlc Phet Paithoon, which is of similar breeding.
These are nice plants nearly ready to be moved into 5″ pots and I would expect blooms in 1-2 years.