When you put the grayscale lizard next to the lizard with a splash of green, it kind of reminds me of an Andy Warhol piece.
Separate files are provided for the grayscale lizard and the green lizard. The ones for the green lizard have “green” in the filename.
Provided file already has settings for 7 different PLA color changes on a grayscale from black to white. The colors used here were in order:
I have also uploaded the unframed STL file in case you want to add a different picture frame.
The author marked this model as their own original creation.