An assassin with colorblindness and low blood pressure. No offense, but the faults you've chosen would actually get in the way of your job, especially the latter.
I suggest that you pick faults that are more believable for your class, or at least give a believable justification. After all, you're supposed to be pretending you're them.
Or you let him keep his character and see where that goes. Though if you disapprove, that is your decision as game master.