Agree this transformation is wonderful!
My only critique is to mix the contour color with a shade that's lighter. It still looks a tad dark for your skin. And the line seems a bit too low on your face. Looking at drag makeup, it should start at the top of the ear, and go straight, at a 35-40 degree angle. I would recommend looking at celebs with lots of contouring, and see what it looks like. For example, Tyra Banks, RuPaul, Beyonce, etc. Gossmakeupartist on YouTube had wonderful contouring videos also.
You're so close. One or two more tweaks, and you're there!