The above sketch was made on a scrap of paper (Gutenberg) while I was out and about. I glued it into my journal (which was left at home because I'm sparing my shoulder the stress of carrying heaving bags). The journal is a 7 x 9 inch book I made with Strathmore 500 Series Mixed Media Paper. I cropped the page because you can get a larger view if I don't show you the blank half page below. (From this you can tell the scrap is about 4.5 inches tall and 6.5 inches wide.)
Most important you can see a little bird on a weed in the middle of that green shrubbery in the front.
I was sketching with a Staedtler Pigment Liner and painting with light washes of Schmincke gouache and a Niji waterbrush.
Whenever no one is in the waiting room, or they are too close for me to sketch, the window views, regardless of how many times I've sketched them, make the time speed by. Each time I see a new detail. Each time my eye learns something.