[IceDragonDuvessa]

I really don't see anything in this bio that would support a monk fighter split class. Also you might want to read through the submission rules for monks. Leaving the path of the monk to multiclass means you can not return to the path again without a CDQ and there is always a good chance of failure. If you take the fighter levels first then you have to CDQ before taking up the path of the monk and again there is a good chance of failure.

Also while it is an interesting story I'm not sure how feasible it would be. Pyrtechon and Rofirein are enemies. Ones blessings do not aid the others followers at all so to worship both is a chaotic contradicion and I doubt either dragon would tolerate sharing its followers with the others. The island as well would have to be insignificant, unmapped and entirely unheard of and the language you described there doesn't exist in layonara.