Here is what I have coded for your consideration…

Add-on aircraft liveries (“paint jobs”) for X-Plane aircraft:

 

Add-on scenery for X-Plane 11:

  • Fantasy Islands – procedurally generated fictitious topology
    • Freeware
    •  Payware
      • Development has been postponed

 

Google My Maps® presenting the geolocation of selected X-Plane scenery add-ons: