Hello Mattyofg! I’ve taken a look and can confirm you do have the “Deepwinter Mantle” portrait frame, like you said.
The “Eternos-Ichor Pistols” and “Eternos-Ichor Griffon Foot” illusions for Brace of Pistols and Griffonfoot respectively did appear to be missing, so I have added them for you.
However, it looks as though you already have the first day gift in your inventory. Can you take a look at your cosmetic headgear for Bardin’s Slayer career and let me know if you see “The Iron Mohawk” there? And if it isn’t, could you please upload a screenshot of Bardin’s head cosmetics as Slayer? Thank you.