Lemoncholic - Art School Journey

hullo guys!!
I'm a total beginner and new here on Cubebrush, and I'm also new to sharing my art in general! I have never done art digitally or traditionally before as anything but a casual hobby, but I was gifted a Wacom drawing tablet for Christmas so I thought I would make use of it.
I've been following Marc's YT channel for a while, and purchased Term 1 of Art School just yesterday (I'd spent the last few days figuring out how the tablet works!). I've been doing some rather unfocused practise for the last few days, separately to Art School.

Please please please give me criticism, I tend to be pretty blind to mistakes!
I look forward to learning from and with you all

Here's a few bits of practise from the last few days! (the first one is me just figuring out how the tablet and clip studio works)

here are some more from the last few days (pre-Art School)
Here's two from today!

Some more tracing

Some figure construction!

The above go back chronologically, from most recent (bottom) to least (top)^

Am I improving? I can't tell