I don't really know because everyone has a different scale for what they consider professional looking and beginner like.
I mean when I was fourteen I thought my art was super professional looking and it wasn't and now I think I'm like average maybe a bit about so I'm really not sure. I want to say on the high end like 4 or more but my gut is telling me like a like a 3 or lower.
Rating oneself is a little hard because I wanna be nice and proud and say oh I'm great but my gut then likes to self depreciate and go no you're awful. Even though I know I'm not
This is my art on the good end:
Me on my sketchier less refined side
and me at my worst (though it's a little old by like a year or so it's still mine
..... So maybe at my best I'm a four maybe and at my worst I'm like a 3 is or maybe like a 2.75ish so I guess at normal I'm like 3.5 or something?