@elianafranzenburg, thank you! In editing I tried to raise the exposure and decrease the shadows as much as I could, and this was as bright as I could get is before the it started to show a lot of noise. Next time I’m in that location, I’ll use a tripod for a longer exposure.
Luke Vrable, thank you! Unfortunately my lenses largest aperture is f/3.8, and I used that aperture. I’m looking in to getting a 50mm f/1.8, though, and if I get it I’ll definitely use it for retaking these photos.