As for Noel, I can tell what you were going for with her left arm holding the gun but the perspective looks wonky to me. It just kind of looks like she has a stubby arm. Other then that the colouring is also solid so keep at it.
I believe the noel piece needs a fix in bodily proportions for it to make sense. The colors are absolutely beautiful. And I Like the Baiken piece. Very dynamic pose with good perspective use to season
not bad. the proportions are a bit off, but practice makes perfect.
Try keeping in mind the joints, especially the elbows, and use them as an anchor for limbs.
Learning about the human anatomy helps too, I got a lot better myself after looking at a few images.