Hi all, long time no see.

I'll get to the point:
Riven character design has been slightly altered; however, my goal was to keep her as recognizable as much as I can.
My main focus on it was to practice anatomy and to get overall feeling of its design. Nothing more or less. I had fun doing it though.
It seems like I have more and more patience to work on a piece longer amount of time. Higher endurance I guess?

Might do other LoL fanart on other champion.

Her blade is the most iconic thing about her and it does feel wrong. She's holding it too gingerly IMO. When Riven's blade is reforged she carries it like it's something heavy but here it look like she's holding a dagger. Her effort in lifting the massive weapon isn't seen. Maybe you used a pose reference with the arm like that.
Just my two cents. Great work though!
Still really nice!