iCloud Photo Library on Macbook Pro, where? I have iCloud Photo Library enabled on both iPhone 5S (IOS 8.02) and Macbook Pro (Yosemite)

iPhone settings for iCloud (Photo Library) reports that I have 3 photos in iCloud
(gallery only shows 1 photo (?), but otherwise it seems to sync to icloud fine when taking a new picture)

Where are these photos located excactly (icloud), and how can I see/use them on my Macbook?
iCloud Photo Library is available starting 2015 on OS X


Until now, you have the chance to


sync between iOS devices running both iOS 8 and have Photo Library activated.
activate Photo stream and see your photos in iPhoto 


iCloud Photo Library is still Beta, and will come to the Mac in 2015, and to the icloud.com as well.