There is a setting in the options menu to swap mouse buttons, but I'm noticing a trend that noone looks at the options menu... I probably could fix that by having a little pop-up when doing the first puzzle that tells you about the available options.
Also I wasn't sure which way should be the default rotation, so I just went with what was intuitive for me even though I do remember that similar puzzles in Warframe had it the other way. That never really made sense to me.
I'm glad you liked the game! :)