I think heads in general are a problem in Brown Poodles. Too many Brown breeders breed simply for color and throw everything else out the window. If I see one more butt ugly Brown breeding dog that touts his "dark Brown" color, I will scream!!!!
I don't think that all Browns have bad eyes, but certainly too many seem to have loose, light eyes. Combined with the liver pigmented eye rim, especially if the pigment is a poor pink, it can give Brown puppies an odd look.
Eyes do tighten with age, but they don't really get much darker no matter what some breeders say. I had two Browns in my last litter. The boy had darker eyes as a young puppy and today his are very, very dark amber (beautiful). Delilah's eyes are too light IMHO. They are not yellow or ghost eyes (shudder) but they could be darker. Definitely something to think about as I breed forward!