They can be seen in the picture above on the background and the windows.
This adds a lot of depth to the game.
The development is progressing well, and the next milestone will be the completion of all the game characters.
There are around 6 or 7 left, which should take around 4 months hopefully.
The end game will have around 16 enemies, excluding variations.
With variations, it will be around 26. Plus the 6 bosses it will be something around 32 characters.