The random generator created this. Its actually a very nice world seed. If anyone wants to try it the seed its: Tokomi
If you want to see the heart, there is a village nearby the spawn point. Just go toward the village and past it a ways and you will see it.
BTW "Tokomi" is "-1784309989" numerically.
EDIT: I've created this world in both 1.12.2 and 1.13.2 and can't really find a "heart" unless you mean the pond at -13, -51.
How about a screen capture?
There are no dangerous weapons. There are only dangerous people. R.A. Heinlein
If you aren't part of the solution, then you obviously weren't properly dissolved.
If you have questions about the maps I post as attachments or Amidst and the like read this thread:
Using Amidst type programs to map and research Seeds
The latest release of Amidst, version 4.3-beta5 can be found here:
You should probably also read this: