yayyy! welcome back!! i was like i havent seen u in a while 
glad you were able to take a break and then come back
these studies b lookin nice so far!
on your sideview study i think her facial features is a bit too high..
on the left is your study, on the right is what i did using ONLY transform and Liquify.. imo i find that (in critiquing other's work) I learn a lot by using liquify and transform only to try to make the study look like the reference - tho for some reason never think to recommend that method to the person im critiquing XD you should give it a try and (maybe duplicate ur sketch) then use liquify/transform after you do ur sketch! its really fun and it is a great way to learn cus when you move the pieces around you can the realize.. ohh.. this is how far its supposed to be.. or oh it should be a little more round or a little more straight or a little more curved here..
hope this example is helpful can't wait to see more of your art ^u^
