HOLY GOD THESE LINES ARE AMAZING!! You've done the work perfectly! you make perfect boxes and lines however im seeing a tiny weeny bit of struggle with ellipses! and from what I learnt while drawing these spherical demons is that consistency is key, keep drawing some moons and spoons and eventually you'll draw them on a whim! and try to familiarize yourself with the motion of the circle rather than the shape itself, it might be a little weird but it helps a lot. overall I dont think you should be worrying about anything because you've done everything well! you will find a ton of improvements if you keep going with the lessons. BEST OF LUCK!!! :D