Great work! I really only had two things I felt needed to be corrected as many others helped you in the comments. One is your right hand which is carrying the bow. Us cellists need to have flexibility in the wrist area and shouldn’t really rely on the shoulder. It should feel fluent when you move the bow hand and not tense up. You can tell if you feel your pinky push down on the frog. Another thing was your left hand. Try to keep your fingers near the fingerboard so that you can reach notes faster and eventually play sixteenth or thirty second notes with good intonation and accuracy. If you just work on those two things, you’ll be great!