Help me ID two artists by their prints

The first person paints photo-realistic depictions of stained glass abstracts. The signature in the corner is a capital “A” possibly overlapped with an x. I got this a couple years ago and the clerk didn’t know beans about who did it.

The other piece is an abstract I got a few days ago and the clerk didn’t know beans about who did it. There is nothing even approximating a sig on this one. But they sure do look nice together.

Are you there, Cinnamon Girl? You nailed the last one.