I'm a first year grower too, but I'd say that yours look a little 'undercooked' - i'd leave them on the vine for a while longer. I made the mistake of harvesting too soon - only a few ounces dry, but still might have been a waste. Mine do have a great cascade smell when they're crushed up in between my hands, but the smell is way to grassy right outta the bag... I haven't tried to brew with them yet, but I'm skeptical of how the product will taste.
You have to dry them anyway, so I say you might as well let the fall air do a little work for you.
As a side note, I just stumbled upon a TON of wild hops near my house in CT and the cones on those plants were definitely in a riper condition than when mine were harvested. They were much more papery and smelled WAY more potent. It's a learning experience either way, but I'm glad I got it figured out my first year - all set for a (hopefully!) big harvest next year.