Nicely done Adam, it looks the biz! Bit of dark grey or similar on the edge of the windscreen frame, to separate the red, will improve it even more, not that it needs much improving though!
This was the very first Academy kit I tried, bought at Duxford around 8 or 9 years ago for a 'Tenner', and I was really impressed with it - a very nice kit, which I must finish off some day!!
I haven't used foil since Moses was a Corporal, so I, too, welcome any hints, as products have changed lots over the years (last foil I used was kitchen foil, both sides, attached with liquid cement). At some time in the future, I have a EE Lightning F2 to do, in a mix of various metallic paint shades, and foils for some panels where needed, and I'll be using the aluminium electrical/heating tape, which is basically the same material as the BMF, but on a roll, and therefore a lot cheaper!