this will be an amazing drawing. I always like your choice of subject! Are you going to draw the young girl’s dress in white? One thing that might turn out a challenge in my opinion is the older girls eyes, because they are narrow and dark. As far as transfer methods: I have never seen anybody use that tight a grid! I am wondering myself right now how to handle transfer on canvas. I fell in love with the painting “Young Girl, Reading” by Fragonard and want to copy it. I might use your method to transfer the image to a 16×20 canvas (larger grid, though), just right now I have no paper of that size. Ha! I just had an idea. The baking paper for my oven might fit, and if not I can use 2 sheets, it is thin enough and cheap.

Susanne