Sorry, but I wouldn't call any of the installations in these photos "nice". not even close. Effective yes, but nice? I am glad I don't have carbon in my nose and can get 4 miles average range according to Flarm range analyzer by mounting the antenna in the nose of my 27a. Otherwise I would have looked for other antenna solutions than the dipole solutions shown in these photos.
Even with the dipole, I bet sufficient range can be archived by hiding half of it below the glare shield.

Ramy