G'day Mowser, and welcome to the forums!
Those pictures tell a great story. How long was the walk? I spent 12 days dong the western and eastern arthurs when it rained for 11 of them, but it looks like that was significantly longer and wetter than that!
I've been up federation twice, but never seen any view due to fog/cloud. People tell me I'm lucky, because it's much easier to climb when you can't see how steep and dangerous it is.