Screenshots

Default cinnamon desktop Linux Mint arm64 Edition
Latest default MintPPC desktop iMac G5
Mint-Y-Dark theme
The fresh new logout screen
The default Mint-X icons and Mint-X theme
Browsing with Arctic Fox
Shiki-Wise theme in Openbox and Mint-X icons theme
Shiki-Wise Openbox theme and Mint-Y icons theme
MintPPC on an iMac G5 with compton window compositor

Since a short while there is also the possibility to have Linux Mint XFCE running:

MintPPC on a PowerBook G4 with XFCE
Login screen MintPPC