45046 displays some extensive re-skinning work.
Shortly before leaving for traffic 45007 poses underneath the Monsoon which was used to test the water tightness (or inevitably otherwise!!) of a locomotive as it passed under a high pressure spray. The piping for this can be seen between the third and fourth pillars on the right of this view.
Just to confirm the roof was really painted after an overhaul here is a view from above of 45070.