Nina - Art School Journey

Hello. My name is Nina. I have just enrolled in first term. I am from Bulgaria and I am 25yr old. Now where shall I begin I can't call myself beginner but I need to review my foundations. I skipped that part a lot in university, I wasn't the best student. I have bachelor and ongoing master degree. I worked for a year in studio for caricatures with dry pastels.
I started Art School because I want to build strong foundation, I want to make better art. My current level it is not enough for me. I want to become more confident and passionate about my art. I lack of consistency and I want to work on my habits. I still do not know what is my dream job but I am working on it.
So, I am happy to be here. It is nice to meet all of you

I want to show some starting point of my art for future comparisons. These are my most recent works.

And this is the first exercises I have done it. These were a bit of a struggle I am not sure in them at all. Maybe some poses weren't suitable for simple skeleton. Feel free to comment and critique everything (the heads above too)