That comb almost looks like a Buttercup comb. And the crest certainly narrows down the possibilities, but no dark skin or feathered legs, so no Silkie there. Not Araucana, the rumpless gene is dominant. Not Ameraucana, the muffs and beard are dominant. Not Brahma, feathered legs are dominant.
Maybe Polish with Andalusian? Will the V-comb gene cause a single comb to double like that?