The Base and Star will print without support, any settings.

The tree will need minor supports in a couple areas, recommend 0.1-0.15mm layer height to keep the detail alive. Use 2x10mm long raw filament pieces as alignment pins to super-glue the tree halfs together. The larger tree can get away with 0.2mm layers without issue.

The Globe Mesh may be a little trickier, recommend 0.2mm layers with support, max cooling air, SLOW speed, and 0.5-ish mm Z-hop. A wider extrude may help as well, 0.6mm, even with a 0.4mm nozzle. The idea being that the wider extrude will slump or droop, counteracting the tendancy for overhangs to curl up.

If you're looking for the .step/.f3d files, let me know, I'll dig them out.