I scanned this sculpture with an Einscan-S 3D scanner in turntable mode.
I sculpted the mesh a bit behind the Angel where the scanner couldn't catch details, the Einscan software does a wonderful job at creating a watertight mesh. I also made a flat base for easier printing. You should be able to print this without support.
On Sketchfab to view this model in 3D: https://skfb.ly/6svWA