Please also note, VT is very hard to rehome since they are super common. VT is dominant over everything, though breeding to a DT you may get split tails... That are uneven and depending on your goals a lot of culling would be needed. HM would cause a wider caudal, as would delta and super delta.
If you wanted to breed your crowntail, make it easier on yourself and find a crowntail male that can even out the bad qualities and enhance the good. I like her, she's cute ^_^ As everyone has already mentioned the genetics will be unknown so you may get a lot of deformed, or not, or may get wonky fins, or not. Even breeding two solids you may get the oddest colors out of a pair
Everyone has had to start somewhere. I started out with pet store fish.