Alright, I honestly never drawn a lion before in my life, I don't think... Anyways, onto the notes! *gets on broom and grabs pointer and points at picture*
Alright, first, lets start with the head:
The nose, it needs to be round at the top and dips in the bottom.
The muzzle, it needs to be thick, and short, when it comes to the forehead, the forehead is a bit squared.
Its ears, your ears were fine actually (:
To the eyes! Alright, your eyes made it look evil, no offence, make it like mine's, a greater than sign, with a circle at the opening.
Moving to the cheek, which should show some fuz, and sleekness.
Now to the neck:
The neck is short, and when it reaches the shoulder blade, the blade is shown.
The chest is put out there, remember 'Loud and Proud' when you do the chest.
Ok, to the front legs and shoulders:
Well, the lioness/lion is a short animal, so their legs are drawn short, and their paws are large.
Making are way to the middle of the body:
Their back goes up to the hind, and they are very long.
Coming to the bottom of the barrel, they are fat. Yes, fat, just putting the word out there. lol
Their back legs and hips!:
Honestly, I don't know what happened with the back paws, I was listening to MIKA lol.
Getting to the subject, their butt rumps to their tail.
Their legs dips to their hock and down to the paws at a slight angle.
The tail:
Their tail isn't as fluffy as you made it, it is really a tuff.
Your tail was going up, the go down, lol.
I hope this helps Salaya , if you want me to add you, I can (:

