Good job all around! Did a few notes as a form of feedback, some of these are usually easy to notice when you "flip" the canvas, which allows our eyes to quickly detect proportions or forms that might seem ok from the other side.
The head tilted didn't seem to follow the spine, so just moved it a bit. The head doesn't really rotate that much on it's base (it does, but just a bit), it's usually more like a "flexible tube" that moves the head to the right or the left, which is why we can rest our ears on our shoulders. Probably should have lowered it a bit as well. It's easier to notice on how much of the Sternocleidomastoid is exposed. To be fair, you get into anatomy until term 3.
The nose on the 3/4 one seems a bit higher. Easier to notice when flipped.
Keep it up man, it's all good progress.