1 From my local meta perspective best skyports for 1000 pts game are barak urbaz, barak thryng, barak mhornar, for 1500-2000 pts game are barak urbaz, barak mhornar, barak zilfin.
2 Barak Urbaz and Barak Mhornar my favourite, Barak Thryng - very interesting lorewise.
3 Image will be changing depending of your local meta and size of the game you play.
4 You can use any colours to paint your guys and declare any skyport.