Balisong (Default arms)

This Skin is alpha version. I want that you help me. Write you opinion about this animations and what i can add.
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I found this Balisong model in my CS directory and changed arms for Default but i don't know authors of this model. Please, if you know who are author or you are he, send me this.
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P.s. I'm sorry if there are grammar mistakes in my text. I do not know much English.