Hey Panered,
So great to hear that you are back to fundamentals and that you have been consistently Drawing!
I appreciate that on your images you are trying to catpure the poses and the expression as much as possible, timed exercises especially in the beginning could feel quite daunting. As Paper Gecko suggested using a line of action could really help you trying to get rid of the initial rush that the time constriction is creating.
I suggest you to take you some of those seconds, even a minute in the beginning, to really observe the picture and the pose before drawing. Taking a good gaze at the overall position, and pin point the important feature instead of starting on the details or thinking about limbs or hands position. So you'll remove the pressure to have an anatomically correct human from the very beginning and you can work on layer and adjust with every pass!
Faces have a degree of stylization which is nice to see, to help you giving more freedom in exploring faces which are quite complex, you can try using a basic structure like ovals and triangles and using lines to understand where the eyes sits in the skull. So as the line of action, you can block out the faces in a simple way and then work your way up!
Enjoy the practice :) the more you observe and draw, the easier it will get with time!
