Since urban sketchers challenge today was shadow, I could have drawn something like this. But we are not allowed to work from photos. Also the image needs to be in context, so not just the glass and table, but the surroundings. It makes for more difficult art, you have to think about what you are including. There are Facebook pages you can join and a monthly magazine that shows urban sketching from around the world.
This years annual urban sketchers meet up was cancelled because of the virus. It would have been in Leeds. Hopefully it will happen next year.