Snake and Skull Lower Leg

hi dude i am a tattoo artist , you have amazing design and composition skills and have the serious potential to be major kick ass as an artist, i must step to the plate and tell you though (in good faith and with the intention to help) your shading is very blotchy and judging by the lack of tattoos on your profile i feel that maybe you are rushing too fast into designs that are too big. slow down, for that blotchy problem i suggest you concentrate on getting that whip shading right, your hand movements and machine setup needs to be in sync and i feel that may be your only problem, if you can get that small problem sorted then the world is your oyster as you are clearly artistically talented..hope i can help in any way....