Hi Gisele,
I did some research, but I don't know if I can tell you everythig.
The god Anubis is a jackal-headed, human bodied, kneeling deity.
To the right of the balance stands Thoth, the scribe of the gods.
Behing Thoth sits a monster ready to consume Ani's heart if he fails to pass the test.
At the top of the scene,( I won't be able to tell you who everyone is), but here is what I found:
Re-Harakhty, Atun, Shu, Tefnut, Geb, Nut, Isis and Naephtys, Horus and Hathor.
Ani and his wife Tutu are on the left.