The improved and fresh sky

One of the biggest parts of the Minecraft worlds is Sky! Sky is empty space, there is nothing we could explore, and a recent Caves an Cliffs update increased the sky limit further more. It would be totally better if we have sky islands, big flying clouds where you could stand on (and fall over similar to powder snow mechanics) new sky themed mobs (like birds not only parrots) and new crafting materials. It would bring much fun for just flying elytra or exploring and just a nice little detail to Minecraft.