@Danny I agree that the TX in question is in fact change from a standard transaction.

With that being said this does look exactly like what a TX will look like when you receive bitcoin from bitmixer. If I follow the "trail" of transactions that follow the subject transaction they also look similar as well.

Have you seen other similar transactions that you knew were not from a mixing service? I have personally not. In my (small amount of) experience a good number (probably most) addresses tend to collect multiple inputs that are somewhat smaller then the total "balance" in an address. The only instance that I can think of having a single address having only one very large input is bitmixer. Correct me if I am wrong.