http://pentaxfans.net/thread-164498-1-1.html
(in Traditional Chinese, Google translated English page here)
Indeed, this set of photos taken just by an ordinary Pentax user does look better than the set created by the Pentax official Japanese professional photographer IMHO. Despite that some pictures taken at high ISO still look soft when viewed at pixel level, which is just the primitive problem of the K-1II and is actually unavoidable.
Note that original full sized samples are available for viewing and download via the user's Flickr album here.