I started drawing this then realised I actually wanted to drink the beer, so I didn’t get very far. Strange how I still can’t get these ellipses even. Also the beer at the top of the beer wasn’t symmetrical. That’s how I saw it. Perhaps there’s some refraction.
![Glass of beer](https://devyse.co.uk/wp-content/uploads/2021/07/20210618-679x1024.jpg)