Its hard to give C&C when you yourself say that you love the line art and shading and colors. I'm sorry, but the lines are choppy, colors are okay, could be a bit more contrast to it, and shading also needs more contrast. Its good to feel confident, but being in love with your own work doesn't help in becoming a better artist.
drawn in 40 min
drawn in 10 min
drawn in 48 min