Narrowing down my chicks breeds

[Jl neighborhood flock]

I’m thinking the one on the left is a arucana Cochin cross

And the one on the right is an RIR and Australorp. Need you’re help though, are these breeds correct?

 

[Rose the Legbar]

To be completely honest, they look to be mutts of mutts. The only main factors I am seeing is the small crest on the bird that’s on the right, and the half beard on the bird on the left. The one on the left also has a rose comb so maybe some wyandotte in there? Based on the body type, comb, and yellow legs.