I'm not sure the red band on his arm is working, and with the brown shirt, a certain fascist leader comes to mind..

As pistachio said, a contrasting color like that would just draw attention to itself rather than the sprite as whole.
Would be nice to get some color in there somehow though and a headband might work better for the character.
You should also try reducing the palette, if you use too many colors on such a small sprites you'll lose the sharpness and it will look undefined.
I went ahead and did an edit, I find this low palette style quite intriguing


I also noticed the shoulders look a bit too broad, they sorta blend in with his huge hair.
Nice edit koyot1222, the angle looks like his knees are pointing towards the viewer, which looks cool but might be hard to animate him running.
The sneaky pose is really great. I'm impressed at how you managed to get such clear definition for the legs and feet. Perhaps it is the selective outline on the feet, and heavier shading beneath his knees.
Hazzy, about the idle animation, the sword moves in a strange way, looks more like he's poking something.
I also think it might look better if the sword moves the opposite way, I read somewhere that animation is all about balancing one moving limb with a movement in the opposite direction of another. Like when do a stab attack with a sword, one shoulder goes forward and the other goes backward, well you sorta twist the body actually..