Which boards look raw? It does not show in the photo.

The lighter boards in the pic- looks they absorbed zero percent of the sealer

It's sap wood. It's normal for white oak, nothing to worry about. If, you want uniform, use red oak or stain the floor with a darker color.

Normal. I have white oak floors and some boards are much lighter and some are much darker than the rest.

My natural ted oak floor has great variation and I love it. Furniture, etc., will make it less noticable

normal. it's white oak. just the way the wood is. I think the floor looks great

THis is real wood it has many differnt colors in it looks fine to me.

It looks beautiful!! Real wood has a “personality” of its own.