Is the discoloration on my lovie normal?

[Csolis22]

I noticed her peach isn’t in a straight line like it always is, she has some pale colors making the line uneven on her head. Is this normal or is a vet visit in order?

 

[expressmailtome]

Do you have pictures of her crown previously? Sometime a pied bird will not have a smooth line to the crown, and other times it happens naturally with a molt.