Please comment on my dragon team!!!

Looks great man!!

If they all work out well for you, I don't think you need anyone's approval for anything

They're all great dragon units. I can see you already racked up a good number of HM for the first two dragons so I think you're doing fine

I would advise merging F2P units anyway. That F Corrin could really use the additional stats. F2P A Tiki, Nowi, and Fae are solid mergeable dragons that dominate in arena.
What you've got now is a solid team, but if you want to make tier 20, merges are kinda necessary at this point.