Hey there, hi there, ho there, andrewathom3! I love how much readabllity of those two faces you've quickly drawn out. All from screen captures, of your....what's that? Facetime?? Bold choice!!
So, if I was to sincerely critique, or nitpick, if you will, you're doing a greater job on those facial anatomy and more importantly, gestures; I just really can't get enough of the exaggeration of those mugs and features. Would you please like to go for warming up to 135 minutes of 30 second faces and expressions warm-ups??? (135 x 60/30, 8100/30, all flipped horizontal and/or vertically, and all grayscale)
The reason why you would, could, and furthermore, should go with these suggestions for a critique is so that you would go with two things: 1) To exaggerate the look and feel of the Facetime angles. 2) To better get a handle of understanding the perceptions of the edges, to the entire gestalt.
Fluke to you, and I hope you've found this completely and totally productive and intuitive.