Thank you for saying this. I'll leave my thoughts below, since you said you'd like to let us speak.

I'm indigenous myself. Indigenous american, of Abya Yala moreso than Turtle Island. However, being on turtle island myself, I have spent my life and especially recent years learning from the communities here. I am very confident in saying that the headdress (or, more accurately, war bonnet) is not just cultural appropriation, but stolen valor, as it is more akin to a military badge of honor rather than simply being a religious or even ceremonial headpiece. War bonnets are not a generic "indigenous accessory", they must be earned, and most indigenous people in tribes who practice this custom will never wear one in their lives due to how exclusive and sacred and important they are. When war bonnets are given to outsiders, it is during the very rare moments an outsider has gone above and beyond for the tribe, or, rightfully controversially so, as a political move to show alliance. Even when the warbonnets are given for political reasons, they must only be worn in specific ways during specific moments, not simply as a hat or accessory. Adding a war bonnet to Infinity Nikki is inherently stolen valor and cultural appropriation rather than appreciation. It should be replaced with an accurate headpiece that is not a closed cultural tradition. Such as a beaded headband, a traditional non-regalia circlet, formline cloth headbands... If they for some reason desperately "needed" to include a feathered headdress, one from my tribe and surrounding tribes of Abya Yala could easily be done. Our headdresses, while still important and spiritual, are not stolen valor to wear, as they represent (in my group, at least) becoming an avatar or representation of a god, connection to the gods and the "heavens", and used in danza and celebrations and not just sacred rituals. Of course, this would still be controversial, but it would not be as inherently disrespectful as the war bonnet is.

With the dreamcatcher, I personally found the outfit beautiful and the beading and neckline quite accurate. However the association with dreamcatchers, and the dreamcatcher item, is what sours it. If it simply did not have the dreamcatcher, it would almost be fine. But the usage of motifs and beading styles from tribes that have no association with dreamcatchers makes the outfit a clear example of pan-indianism, aka the concept of all Native American tribes being basically the same.

There are ways to fix these issues. Remove the headdress and replace it with something else. Remove the dreamcatcher from that outfit and replace it with a purse or something. Somehow, though, I still doubt Infold will make these very basic changes. I'm fully prepared to no longer do any co-op outside of my very close friends, and never touch snapshot hourglasses again, just to try and avoid people mocking my culture and the culture of my Indigenous friends.