Legs too far apart
Eyes are different sizes
Eyes look stoned, not looking at fairy
Head too small/narrow
Body too wide
Eyebrows at wrong angle, change expression to stoned/drunk
Shield is doing some kind of impossible bend, doesn't look like an actual object
You've completely outlines his forward arm so it doesn't look connected to his body
Belt is too narrow
Belt is too low
Belt does not cut into his tunic at all, emphasizing the "fat link" problem
Shading is good, line quality is decent (except some hairy lines on hat). Try looking at the negative space (the background that is cut out by your figure) to figure out what is wrong. Also try looking at your drawing in a mirror or upside down.