hey alright! nice work man, i would ask why he's falling backwards but i'm guessing you were going for the classic mummy-outstretched arms-leaning back pose. just be sure his feet are grounded and it's his torso leaning back, not his legs or else it will look like he's tipping backwards. also, a nice cast shadow on the ground will...ground him, add a sense of placement. nice sketch though, keep up the hard work!