Really nice tones, but i like the first one most (has this majestic feeling)
Cant tell what is going on in the rest...maybe add some sharpened layers as well...environment paintings etc. always tell a short story about what happened, or is happening..etc.
I want to be able to see that in your work too, maybe increase the canvas size, use a greater variety of tones and colours...try some b&w backgrounds as well
Just try to play around with what you "want to see" and what you "can see" Use your imagination to a higher extent ^^
But like i said be4, these look nice (first one especially) XD