If you wanted to go scarey you could do Leatherface. Hagred from Harry Potter would work. The bottom line is, do what you want, and what will make you happy. True cosplayers (man, I hate that term.) should not judge you on your weight, or size. We all have a common passion, and love for the hobby. You should be complimented on what you do, not for what you look like. I am 6'3", and 210 lbs., my next costume will be Deathstroke...oh yeah, I'm 68, and just had a pacemaker put in, I plan on being a 70 year old predator. So, go for it brother, and enjoy.