I feel like "11th Dream SkyBlock" is not the best name to use. It is a bit of a mouthful, and it uses the term SkyBlock, which is something that I feel a lot of people use when owning a SkyBlock server. Make sure your name has a ring to it and is unique, so when people tell other people about your server, they can google it without a million different skyblock servers popping up. Also, with regards to keeping your name unique, try not to use a name with Craft in it, like VolderCraft or HazeCraft. The -Craft servers will all seem to blend together when you say, bump it on PMC. The name should also not be too specific to the gameplay, in case you ever want to get rid of SkyBlock for something like factions or towny.
Keeping that in mind, this is my name suggestion:
Empyrean Frontiers
