Creative TEACHING Server?

Hi, so I'm not new at Minecraft, and I'm not a noob. I've played for over 6 months, but I'm still not the best at building. I'm decent, I've built some towns, mansions, parkours, etc, but I'm looking for a server that teaches you techniques. I'd like to learn good looking block combinations, good ideas for builds, general rules of thumb, or other things. I'm looking for a server like Mithrintia Academy, because I'm pretty sure I won't get on there. I've applied, but nothing has happened . If you own/ know of a server that teaches things like this, please tell the IP/ website!!!

Thanks!
-Cree