i actually really like this.. the skull isn't perfect like you always see, it's all roughed up and bashed in and there could be a lot of symbolism behind it.. i don't know what exactly you had in mind but this looks like part of the tattoo i'm getting and has a great deal of symbolism for me.. Overall i really like it. I don't know why you say you got lazy on this one!
Not too shabby, though I do havea suggestion. Yu did you waves in the Japanese style, but they are wrong. If you look in my gallery at Yuki's Koi Linework, there is a pretty good good example of correct Japanese finger waves. Feel free to use them as a basis for yours. They were my sensei's stock waves.