Okay, one last one from the 'back catalogue', then I'll leave you alone . . .
So, so far, apart from being One Wing Biplanes, all the models we've seen have been what I call 'straight', that is, effectively OOB. But of course, we can have much more fun than that ! Here are what I call 'compounds', that is, a Whiff based on a Whiff.
So, for instance, starting with the Bristol Fighter that we've already seen,

we can develop a Home Defence, single-seat night fighter 'Brisfit', with a second Vickers gun, and a wide track undercarriage . . .

Likewise, from the DH.4.

I created a high altitude reconnaissance version, the DH.4-U2, with extended wings, and high altitude engine and propeller, developed for a mission to photograph the German fleet and Kiel Canal . . .

And finally, we move on to a scratchbuilt model, the 'DH.7 Hornet', designed to the same specification as the Sopwith Salamander and Vickers Vampire. The flying surfaces come from the spares box, as do the undercarriage, engine and propeller, the tail booms are thick plastic card, and for a further bit of fun, the nacelle is 3D-printed . . .

cheers,
Robin.