I just finished drying my 3rd year Cascades and didn't notice nearly as much grassy aroma as I have the first 2 years. Maybe they loose the grassy aroma as they age?
My Cascades look just like yours. My Columbus are looking like square and elongated cones this year though.
My daughter was also out helping me pick the hops from the vines this past weekend. It was great, she had to mention how every cone smelled like beer