I would not worry about the eye color at this age. It will change when they get older. Not sure about the beak color though. I have seen lots of wyandottes with dark beaks. I would have to look at the standard to know that.
They look like they've got a lot of black for columbian though. Post the standard when you get it.
I don't think either of these are very good examples of columbian 'dottes.