Bryce 5 crashes SheepShaver on my side immediately. Host OS is Sierra.
My guess is that the not completely emulated MPC 603 in SheepShaver is incompatible with a app made for MPC 740 (or better) Macs.
Not uncommon as the specs for Bryce 5 are Mac G3 or G4.
Good luck with your Windows VM!
I would like to recommend XP or lower in VMWare Fusion, as Fusion offers a DirectX 9 compatible GPU emulation.
VirtualBox does not have a GPU support that I´m aware of.
I may have a pre-built W2K or XP instance for VMWare already uploaded to Mega.
Let me know if you should want to try - setting up things yourself is part of the fun though.

Edit:
Snow Leopard does run Bryce5 too, due to the Rosetta PPC emulation.
Windows 10 64bit can run the app as well, albeit in the small Bryce5 (800x600?) screen on a black background.