Amateur Astronomer, Astro-Sketcher

Here are the Bortle scale levels of the observing sites where the sketches were done, each sketch specifies the specific location.

Bortle scale-

Levittown, NY: 8

San Antonio, TX (3 miles west of loop 1604): 6

Rio Medina, TX: 5

Lost Maples SNA, TX: 2

"The Bortle scale is a nine-level numeric scale that measures the night sky's brightness of a particular location. It quantifies the astronomical observability of celestial objects and the interference caused by light pollution." from:

en.wikipedia.org/wiki/Bortle_scale