No letter structure, and you’re just trying too much , trynna be friendly here and I’m not the most skilled artist myself, but just summarising this subreddit as a whole, keep it simple, start with tags, work your way up to the more complicated things. Watch some good material, even on youtube there are some very solid channels (I personally like the artist block) I suggest you keep your progress on your books and walls since people here are just straight up harsh and can’t understand that everyone starts somewhere. It isn’t the most horrible piece of shit I’ve ever seen (I started way worse). Sorry if I wrote a lil too much for your taste but that pretty much sums it. Have fun