Welcome! The best is to look at the VV1 guide.
You just miss one puzzle that resolve the others and I think you are able to find it.
If you want to know the spoiler, highlight here: Make a baby, put him with his mother in the Lagoon and the Golden Child will appear! Bring him in the garden, and after to the strange plant on the North, and let him do the rest! (end of the spoiler)
Good luck!!