I like Old San Juan. It’s old. This is in the town square where the taxi drivers sit waiting for their next fare.
The fort has been around since the 1600’s and everything else around it was ancient too. I did some paintings on the bus that are some of my favorites.
On a painting… I take notes on the back of the art, note colors, details etc, and then paint it in the hotel room or when I get home. I use a dip pen, and sepia india ink. Sometimes with a pencil sketch underneath or if I feel confident, then right to ink.