Looking good! I like that color.
If you are using the iso alcohol for cleaning all the flux up after soldering, try an old tooth brush works a lot better at getting at the joints than cotton swabs. You can even heat the head of the tooth brush so that you can bend it back so you aren't scrapping your knuckles. We use a water soluble flux solder and flux pens. It allows you to wash your boards with warm water and remove all of the flux. Then use an air compressor to blow the water off. Just use common sense when getting components wet like motors. We actually wash all of our boards that we build in house with water and dry them in this manner.
Flux pen: Kester 2331-ZX part number:8310972331
Water soluble solder: Kester 331 (.031" 63/37) Part number: 40500461
We are now using Locktite solder. Part number: SN633C 0.56mMR HX3C (250 gram) (I think this used to be Multicore brand)
Jeff