Is Mily a working type cocker? Lemon (solid, - and white and roan) is usually used to describe a colour in working type cockers, it's like a pale watered down gold. My dogs are all working cockers and you can see them in the signature picture below. Rodaidh the youngest is golden but his father is lemon as he is a paler colour than Rodaidh.
This is Jasper (not Rodaidh's Dad) he is a lemon and white working cocker
This is solid golden Rodaidh with his brother Moses who is a lemon roan