Heroes of Might & Magic III: Horn of the Abyss

There is no need to use someone else's music in the add-on; feel free to do so for personal use.

I agree.

In general, if you are planning to write music for the add-on, you shouldn't get too "carried away";). Of course, it should be classical music. It should not be too different from the music of Heroes of Might and Magic III, but at the same time, it should be distinct from it. :)
Well, in principle, music is not so important, because if someone doesn't like it, the user can change it back (if they know how to move files from one folder to another :D). For example, I generally play Heroes without music; I turn on a player and that's it. :)

So, when will the new screenshots be available? :))