Hello Pastabrother.
Good job for making an effort at drawing, it's always a first step, and next would be to keep the streak going!!
Now, for the artwork you created, firstly I will point out the good things, and that is the strokes of each drawing are clean and confident, that's a good and you have nshiedshy away from trying out the complex pose, so good work.,
Secondly, proportion is a bit off, so I would recommend learning about that, as it will help you grasp complex poses. Next, perspective is also important. The 3/4th view head would be in a perspective, so knowing a bit of that will go a long way...
I am still learning, so if there's anything I pointed out that was a bit harsh, then I apologize!!
Happy Drawing!!
I believe that you are doing a pretty good job with the shading, however I think that one thing you could definately work on is the hair. It appears to be quite flat. One thing that you can do to fix that is work on looking at the shapes and working on making them smooth (I noticed that you make a lot of angles in the hair). anyways good job overall!!