Howdo.
It's a nice piece, love the composition and mood of it, but I stared at your knight a few times and I am a bit confused as to what shape/pose he is in. Ok I assume its a typical knight kneeling pose, but there are some things going on there like in particular the back, sometimes it looks like hes got 3 legs, other times I look the back looks like an arm leaning on his left leg but then his pose to me looks like hes squatting with his legs wide open. Anyway i just thought it was a bit odd looking.
I didn't get much time with this and my result has lost a bit of that stylized look I "think" you where going for (ie sword and sworcery stylized stick figure look), but perhaps you can find some middle ground to what I have done and your style to make it look more obvious he is in a respectful kneeling pose.
I also swapped around some colors to make both him and grave a little more prominent, re-did the grass and birds, though the birds I will admit are a bit shitty heh
Anyhoo it's a nice piece to begin with, good work, I would agree with mystery and say the whole background could to with a re-fiddle