Well as ESA said you are nobody to tell him to change the blood and also if your telling him to change it why dont you tell whats wrong with it and how to fix it?
dont you order me to change it. unless you can say what looks bad about it like bouzolf did (thanks btw), or give me ideas on how to improve it, you're better off shutting up and not making your self look dumb.
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O.K.... but it could be better.