Even the top right Bhut has a peculiar look to me, it may might explain why the bottom two turned out quirky.
If you did not isolate flowers last year, then i'm betting that one of your Bhut donor pods turned out to be crossed, and produced the two peppers at the bottom of the pic.
But, one of your donor yellow Moruga pods from last year may have been crossed as well, and produced that red specimen at the bottom right.
Then you also have mutations or genetics to consider, sometimes a yellow seed will produce red pods, and vice versa.
You may never figure it out, but if you haven't been isolating flowers, i would start right now to get good pure donor pods before the season ends.