As an artist, sometimes the mistakes we make turn into wonderful creations. So true - some of my favorite costumes are ones that were the results of mistakes or circumstances beyond my control. I was hoping the Peacock would be one of these but no.
Also, perhaps you may have romanticized this dress to the point its unachievable in reality, theoretically, conceptually sure but the execution fails because the ideal is unrealistic. I've definitely thought about this. I think for me it's partly physic-ing myself out too much this long-standing dream (and therefore setting myself up for failure in many ways) and partly not excepting my skill level in this period. I just don't have the skills (yet) to make this vision in my head. That is part of the reason for my new titanic Dinner dress - to develop the skills to make what is in my head.
I learned this lesson long ago with other periods/projects but I’ve had a bit of a blind spot with this one, probably because it is an ideal.