Been a while since the one thousand cranes, but I'm still folding.
I've recently been messing with the kawasaki twist and creating simplistic roses from that.
I got the idea from here. -> [link]
The twist is in the same angle to the paper I just closed the bottom a different way. What I love about these roses is that you can create different styles by how big you make the center square from the twist.
As for the hearts they are just something I designed yesterday. The locking fold to hold it together isn't really strong but it makes the heart 3-D.
Pic of the hearts alone. -> [link]