The answer is, yes!
Although ArtPlacer was initially thought to work with 2D Art, now you get to showcase Sculptures with the dedicates Spaces and Virtual Exhibitions' pedestals
We recommend having a look at the For Sculptures category within the Room Mockups section filters (left side of the screen).
NOTE: To achieve a similar result, you'd be required to upload the sculpture pictures in PNG file format with the background already cropped out and with transparency.
3D modeling software file format are not supported yet. (for e.g: .SVG).
If you want to learn how to showcase Sculptures and/or 3D like Art pieces in a Virtual Exhibition, continue reading here.