Don't give up! that's why you're here, to improve
I think your art looks gerat! i like the way you color and shade as well.
I think you have a lot of the core concepts down as well. tbh i see no issues with ur anatomy/proportions. it looks professional (imo.)
what i do when i don't like my art is think "what would make it so that i like it more" - for me, my main audience is me. if i dont like what i draw then even if other ppl like it i still wont be happy but if i like it and other ppl dont i'll still be happy.
for example i hated drawing backgrounds, i'd feel lazy when i had to work on a background but the more i think about the process and break it down, and take my time with it, the more confidence i had in my bg.
I think its nice to take a break every once in a while but don't ditch the whole journey all together.. Good luck!