I went to see this today. Not that i'm knowledgeable or enthusiastic about art in general, installation art in particular, .
It is quite an experience to see these two types on display the way they are, disconcerting almost in the case of the suspended Sea Harrier.
The Jaguar with it's highly polished surface (your reflection is fairly clear in it - is that a comment about the actual use of this machine in combat 'in our name?), looks for all that like a dead insect.
Both aircraft have been as expected, stripped out, the cockpits, engines as you'd expect, cannon on the Jaguar, engine nozzles on the Harrier.
There are information booklets in each gallery, including the history of both aircraft, the Jag's busy life, the truncated, mundane one of the Sea Harrier, damaged beyond economic repair in 2000.
Including a pic of the rude Viz character which the Jag had in the 1991 Gulf War.
For all the polished surface of the Jaguar, such close inspection does show well it's construction, compact, workmanlike, angular, never a 'sexy' aircraft, not an all singing all dancing all rounder, but effective and workmanlike in it's designed role.
The way the Harrier is displayed, makes it seen larger than all the times I've seen 1st Generation Harriers in static display at airshows, perhaps a result in part of the setting, the magnificent high ceiling gallery.
Worth a look, you do see the aircraft in a different light, whether it was the intention of the artist or not, the display does make these military aircraft seem more benign.
Both were, after all, aircraft cleared to carry WE-177 nuclear bombs, as well as the other weapons.