Championship Ashe's Hawkshot and R need more VFX.
Look at Ashes other skins, and compare them to Championship.
Her skins with default animations all have a small burst of feathers on Hawkshot and chunks of ice on R.
Heartseeker has a burst of rose petals on Hawkshot and a heart explosion on R.
Project has a blue scanning effect on hawkshot and a visual representation of dubstep on R.
Championship has a slight increase in brightness on hawkshot and a VERY brief blue explosion on R, but with no particle effects to go with it.
The model and projectiles are beautiful, but the actual VFX could use work.