That's a lovely plant! Healthy as can be, and a peloric flower to boot (a peloric flower has petals which take on the appearance of the lip). Pelorics are amazing.
Identifying a hybrid that's not tagged is all but impossible. Maybe completely impossible. There are thousands upon thousands of Phal. hybrids and many of them are virtually identical. Basically, you'll have to settle for calling it Phal. NoID. But that's not a bad thing - it's a real beauty!