My largest watercolour for a long time (21.5 x 8"). I actually had to stitch it together in Photoshop. You probably don't know this, or maybe you've guessed, but I work quite small usually. So this was fun and I was using paper that I used to use (Arches) but forgot how different it was from the pads of paper I usually use (which go from Fabriano, Hahnemuhle, Canson, Strathmore and Cartiera Magnani to name the most often used). I forgot how much the paint bleeds into the paper and how it almost has a sandpapery texture.
Anyway, I might try some more like this but maybe smaller next time but still "panoramic."