The tank looks great! I'm both impressed and jealous!
One thing I noticed along the way is you noted you only had one Male
Guppy unless I misread and you added one? If you can afford the space, a second one would be magic for your tank (IMO) They are my new favorite fish.
In pairs or greater, they really keep the tank animated. Whatever it is with guppies, they seem to stick together like glue, and always seem to do well in pairs. If you have the space, add one, you'll be surprised at what happens I think. Mine are never more than a few inches apart for more than 30 seconds, but the way they move around, they also to keep the rest of the small tank moving around.
Great looking tank again! I'm still chicken to get into live plants just yet lol.