So i finally got my hands on
RiRi Hearts RiRi Woo, but I was bummed out because I had also ordered the blush/bronzer and the plum lipstick but order was never received by MAC :(
Now on to the comparison, both lipsticks look different in the tube, however once applied to the lips they look identical. RiRi Woo is a bit more hydrating since it is a retro matte.
I applied the lipstick next to each other, they look identical.