Indeed, Moscow has one of the most beautiful subways in the world. I visited first time in 2014 or 15 if I remember correctly for Luxury Travel Mart (I work in tourism) and I remember I was impressed. Have you taken any more photos on different stations? If so, please share. I'll follow you not to miss anything!
I will see if I have more photos and post them, I don't have too many but maybe a few more. I got distracted by the beauty and forgot to take photos :)
Oh, I know the feeling. Especially when you travel a lot. It's liberating somehow to be able to fully enjoy your surroundings without carrying about taking photos. Sometimes I'm going out to new places and leave my phone behind on purpose not to be tempted to photograph everything :-).