She's a mixed breed. Rabbit's arent like dogs where most of them are a mix of different breeds, the vast majority of rabbits aren't descended from any purebreds (and even if they are, they lost the breed specific traits within one generation) The color is called tricolor.
He's entirely wrong. Longhair is a recessive gene. The rabbits would come out just looking like generic rabbits, not fitting into any specific gene. Crossing angoras and fuzzies doesnt make american fuzzy lops either. The only thing that people cross into american fuzzy lops to get more american...
Black otter and broken black otter are the most likely. Because of the darker shading on the harlequin's face its likely self based so castor isnt as likely. If the otter carries self you might get blacks and broken blacks; if its carries harlie or non extension you might get harlie or tri. The...
The lighter one is either a red or amber. Blow into its coat over the back; if it has a dark (or chocolatey/gray) undercolor, its an amber, if it has a light undercolor (white, cream or red) its a red.
Amber:
Red:
Yeah, its a black himalayan. The black points on himalayans are more like a dark sepia; and when it gets warmer, it gets even lighter. You are supposed to look at the very darkest part of the himalayan to tell color, usually the tip of the nose
This is called nest box eye, you can look it up to get some more info. Nest box eye isnt usually fatal though, there is likely some other, possibly related issue going on with the kits.