Some cracking pics there. Did these two in early April, as part of the five. It was a decent enough day but, unfortunately, Ghlas and Lawers were in clag then and it wasn't until we got dropped down towards An Stuc that it cleared a bit and the views opened up.
The photos and reports of walks in clear conditions just make me want to go back and experience it snow and clag-free. May try a wee camp up by Lochan na Lairige in July and do them again (with the Mealls, a' Choire Leith and Corranaich, thrown in)...no guarantee of clear conditions even then though!