Here's the six designs that are used as bosses. I have modified all of them to some extent (usually made them larger) however, some are more heavily modified than others (replaced frameworks, etc.)

Scouring Phoenix - https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=1920085741
Dervish Goliath - https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=1462552630
Baleful Katana - https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=2201052514
Steadfast Hunter - https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=2311823866
Relentless Hellcat - https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=2352959940
Vigilant Shield - https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=2381964919