Congrats, City!
You've been on a bit of a roll lately!!
I'm almost at 400 eggs hatched for my shiny Feebas hunt - I have 20 more boxed to hatch before egg 400.
I think my Tirtouga hatching at less than 1,366 has me spoiled and thinking that this Feebas can hatch shiny at any second, but I'm trying not to get my hopes up. It'd be a dream if it hatched before 1,000, and I've seen some people who have had MM shinies hatch at less than 500 - but that would be asking WAY too much.
Anything less than 1,366 is great for me. Stick with it Shiny Supercrow, 1,450 is a ton of eggs, but one will be shiny soon!