I can imagine the 'peaceful to hard anger' attitude is situational and depends on the person they're talking to as well. It seems contradictory at first when you read it, and I know that there will probably be some picky people who will nail you for that.
However, don't try to be over specific, it can lead to plot holes and computational errors.
You will also want to make a history at some point, but don't be over specific. A bio is a frame of reference, and not a story. No need to make the history like 5 pages long. (when you do get around to it)
Also, not many demi-chimeras, which makes this pretty interesting already.