Genetic questions

[Hazel feather]

Hi all , I’m trying to figure out what each of these crosses would look like and egg colours .

Cream legbar rooster over :

Black copper Marans
Welsummer
Splash laced red Wyandotte
Columbian / light Brahma
Barred olive egger ( ccl x cuckoo Marans)
Lavender Easter egger ( blue / green egg)
Buff laced polish
Whearton Cochin bantam
Millefleur Cochin bantam

Thanks in advance !