You might also want to take a look at The Third Race Overhaul
TTR.S.O. is a minimalistic and modular skill overhaul aimed at balancing the vanilla skills while maintaining the vanilla feel. Magic, Combat and Stealth skill trees have been balanced to offer meaningful choices with perks, spells and some mechanics.
If you feel the vanilla Skyrim was doing a "good" job but was just missing something, this mod is for you. Overall, the game is gonna be a bit harder since I've fixed a lot of exploits, but it won't be overwhelming nor will prevent you from becoming a legend.
For those who want to keep the vanilla feeling but need "something" more without looking for a huge overhaul.