i think it's funny when people can't take a bit of criticism... there's a difference between what riil said and being a dick, riil was giving you CONSTRUCTIVE criticism, he wasn't telling you you suck at making images. he didn't tell you your picture sucked he in fact told you areas where it could improve.
i 100% agree with him in what he says as it's good detail in the grim reaper itself but the rest of the picture could be improved. add your own personal touch to it instead of using the brush tools with defined shapes