help finding og creator/identifying items

hi! i found this robecca steam dti outfit online, but am having trouble figuring out some of the items. i also have been unable to find any trace of the person who made it (watermark says @kogelkei) online, except for a pinterest link that no longer work.

the sleeves, bottom skirt, shoes, socks, and design on the corset are the things i cant find. any help identifying is appreciated!!