I couldn't find any feedback on this Outfit Style set in PTS forums (except for one lone post in the Bug Reports for Anniversary Jubilee).
Anyway, the Indrik feathers on the shoulders and waist are
not dyeable.
Which is unfortunate ... because it really limits the color customizations you can do with the Outfit Style.
On the plus side, the weapons are well-designed and look nice.
The Staff and Greatsword (shown) should be popular when the Annversary Jubilee Event debuts.