I don't use a polarizer. I do, however, put the setting on Macro and avoid using the flash. I generally consider my light source and try to accommodate the art to be oriented where the lighting helps the photo. Sometimes, with metallics, i want to get the shine or glare but it's hard to capture. Here is an older post where i had to wait for the direct sunlight at a particular time of day and then try my best to get the shots in a limited time to get the glare.
https://peakd.com/hive-156509/@castleberry/expectant-agog-denouement
I know it is more tricky when the medium, or paint in your case, is still wet. You could try different angles or lay the painting flat to get your shots?
I usually go back and edit my photos just a little as well. I try to increase the clarity and adjust the dark/light measures to get the best out of the images to accentuate the details a little more. I checked out your post and i didn't feel the glare was overbearing. I think we all notice our flaws a little more than others since we are the creative executives of the art.
I hope any of this response helps you out. Keep up the great work. You did great recreating that photo btw!
Thanks for the response and suggestions. The lighting in my painting room is very bright and direct, so somehow I've got the deal with that. Editing the photos to tone down the highlights from the glare is a good idea to try. Thanks for the post vote as well!
You are most welcome! Looking forward to seeing how everything turns out! I am sure you can come up with some creative solutions! Keep up the great work!