That perspective choice combined with the backround makes him look 50 feet tall, not sure if that was intentional or not. Although I like your mature/naturalistic take on freeza I feel like you could have taken more licence with your surface treatment specificaly breaking up the surfaces with more subtle organic imperfectioins that flow with the muscles around the thighs tail and abdomen. I like the praportions but since this is a very comic-esc character i would have made him slightly taller or simply elongated his thighs a little since it is a redesign. Most of the sculptural strength is in the face, neck and clavicle at the momment. Cool take on him though.