I adore this drawing and will admit that it blows my mind a little. Drawing this must be a little like working with a negative, because instead of drawing against the light and creating shadows, you start with the shadows and have to create the light.

And the details you're able to create in this format! It's obvious that there is moonlight coming in the window of Merlin's room to backlight Gaius's hair and Merlin's shirt. Gaius's fingerless gloves, the little flip at the end of Merlin's belt, the delineation of the sewn bib area on Merlin's tunic, the bunching of his neckerchief, the difference in the lighting from the moon and the candlelight giving different tones to Gaius especially, the moonlight highlighting Merlin's chin, cheekbones and brow.

*Kermit flails* So much talent! *iz not worthy*