Bare-bones cockpit with no bulkheads - nothing, really, but who cares, it's all hidden under the canopy, isn't it? But look at all that nice detail in the reference pic!
The decal sheet, including engine auxiliary air intake doors - I wasn't happy with the colours of the rondels, so ordered a couple of sets of UkAF isignia from Modelmex.
Another coat of Klear/Pledge then weathered with AK oil pencils then Satin Varnish 26-519 topcoat. However this was too glossy to my eye, so I eventually applied a final coat of AV Matt Acrylic Varnish 26-518. Much better!