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Hmm, in the case of these creatures, everything is correct, but you can't deny that very often some suffixes don't fit certain words. It seems to me that this is exactly the case, because the word "Elfish" sounds wrong. There is nothing pretentious about the word "elven"; it is a common possessive adjective. If you want to belittle the elves, it is better to write "Elven Port," because, you must agree, it sounds quite rude.
I finished the first mission at level 27. It seems to me that this is clearly an exaggeration. By the way, the mission was easier on "Warrior" than it was the first time I played it on "Recruit" during testing. Maybe it just seemed that way because I already have experience playing, and I took very good care of my army. I didn't find any other mistakes besides the ones mentioned above.
The second mission also went surprisingly easily. Perhaps I will check the difficulty level, although I clearly remember setting it to "Warrior." The introductory video is perfect, although you left too much time for Zazir's lines. I have time to read her lines twice aloud. In the initial message, again, the word "nechego" is used, although it should be "nichego."
Skull, there was no initial restriction, although it wouldn't hurt to have one. In the first mission, a level limit of 22 would be appropriate.
Soljie, you can download the first part of "Islands of Mystery" in the "Story Mod: Islands of Mystery" thread, which is in this section.