Yeah I don't know man, that looks ridiculous. I don't even understand what you are attempting to do.. That piece is wayyy more than 5 cm too high. wtf lol. What did you plan on doing ??? Wearing it behind ur hairline?

What you should do is wear it forward more definitely. and if the crown sits on top of ur head. try to retrain the hairs and make another crown. Wet the piece and than comb it and use a blow dryer at the root of the hair and try to retrain it to make a new crown. U could use cosmetic concealer or whatever to fill in the bald spot of the crown. Its the only possible thing I can see doing at this point. right now it looks ridiculous.