I forgot to mention this in the original painting but there are 2 separate birthrights, Hearts and Diamonds. There are currently 8 important members in the Heartbeat family and only 3 of the Four Diamonds.

I'm not saying that your OC may become family member, so far that has not happened (nor it will). Just wanted to point that out for those who asked to be featured in the project.

ALSO, use this tag when making your Heartbeat OC design.
#HeartbeatFA