I know these aren't Stormcast Eternals, but they're totally part of the army. I used a jeweler's saw to remove them from the old, square cavalry bases and then put them on the appropriately sized oval bases. I think it really makes them look nicer. The old squared off bases were great for ranking up models, but crap for skirmish.
I should have more pictures soon. The intention is still to have the army fully assembled and primed before I go to sleep Wednesday night.