On Your Own (Proposal)

For my "On Your Own," I would like to do a technique called long exposure.
Like this photo:


I was thinking about doing it at night in San Francisco. So I could get the lights from the city.
This website has a video about it and where I got the idea from:
https://www.slrlounge.com/creative-photography-ideas/

If this does not work out, I would like to do something similar to this photo.

I would like to a close up of a container that spilled. I would like to capture the texture of the bottle and of the substance in the container.