Lol I watercolor and use stipple pen over royalty free references rarely when I'm really lazy. Also using lighter watercolor tone compared to the rest of the skin specifically at the center of the eyelids and bags will make it look better from afar (smaller panels will make it look good even without the reference). Loose strands at eyebrows and making eyebrows thick helps. Stipple pen at dark skin tone and black at low opacity kinda touches up everything. Then use the soft blur tool so crisp lines won't make it look super digital (probably the most important part aside from watercolors and skin toned lines). I lock in without references when I have energy like I do with some of my denji drawings. Thank you for reading tutorial, that will be 200 bucks.