Divine Journey

Why is there no information about the stats and characteristics of the Dwarves?

They are a secretive people and like to keep their secrets. Actually, I forgot to include it. I have corrected it.

The Half-Demon needs a base.
The Half-Blood needs 2 bases.
And the Homunculus is separate.

Exactly. I don't know how anyone could have thought otherwise.
A Half-Blood is someone whose parent is a member of one race, and the other parent is from another race.
A Half-Demon, as the name suggests, has a demon father and a mother from any of the races listed above.
A Homunculus has nothing to do with other races, as it is created artificially.

And I have another question! Do female Lizardmen have breasts?

To be honest, I didn't go into such details, but I should have. I'll leave this up to the players.

And another question, are the Serpent People completely savages or do they still have some concept of civilization?

More savage than not. They live in tribes in swamps.

And can I use stereotypes? For example, eating live mice or hissing in speech?

Yes, you can.

Ugh, on the contrary, do the class properties apply to the subclass?

Yes.

I almost forgot, I promised to give real-world equivalents to make it easier to come up with names (although, most of them can be understood anyway):
Selenite Empire - any medieval European name.
Rosencrucian Kingdom - German and French names.
Free Cities - Arabic names.
Celestial Empire - Chinese names.
Elves - imagine elven names.
Nix - Norwegian.
Aristocrats - a full medieval European name with a prefix indicating noble origin (de, von, etc.)
Dwarves - as with elves, ordinary names common to this people.
Serpent People - Native American.