If you really want to impress them add some entourage like people and birds. It helps make the drawing feel more alive and less static. Just grab some trace paper and go to town.
Very nice style. Looks like it should be animated. If you were presenting to an architectural audience, I would recommend you be more precise with your perspective construction, otherwise,
I grew up in Madison. This building is stunning like nothing I’ve ever seen before. There is such attention to detail, and every time I visited, I found something new. My favorite random detail is by bathrooms on one of the main floors, there is an echo spot built in, and it not only allows you to hear an echo, but if one person stands at the edges, and another stands in the middle under the cone and speaks, the person on the edge can hear the person as if they were using a microphone. So cool.
I think the dream-like quality of it is amazing. Keep up the good works!