Not... bad!!
I think you just have to practice drawing straight lines free hand. You use more confidence in the way you use your lines to draw things.
other than that i think you just need general practice to "level up"
always draw what you see …
only fault that i think it has that is that i feel it is a tad too tall in height so when you scroll down...it takes FOREVER TO SCROLL.
as a header it is find but please not as a signature. it's too glaring.