Hi there! Im a newcomer on steemit. And a fellow artist ! Your work is already great but I suggest you keep on working !
Tip: something that worked good for me to improve my technique was to draw the same face at least 10 times (with different angles if you feel like it) and then go to another type of face. After a few month of practicing I could get really good results and I could sketch almost any kind of face -on the spot- . Looking forward on seeing more of your drawings ♡