Hi Azorean, your plants look very interesting and different from each other.
My 5 year old Pitangatuba fruited for the first time this year, two fruits of the long type, I got seeds from Helton from Brazil in 2012.
Grown in a windowsill, taste: very tropical, hints of mango, citrus, sweet and acidic, but not overly so, with definite funky undertones of wet towels, vomit and stale cheap wine. Different, but very interesting. The consistency of the flesh was very juicy and a bit fibrous. It had a nice bite, but was extremely fragile.
Keep us posted on the development of your fruits.
Solko