When the one character mashes her text together (no spaces), that was just painful to read. That kind of text is rarely fun to read, personally.
The tree enemy bursts through the wall, you are almost at the stairs, and you turn back instead of going up the stairs or giving the player a choice.
I think fortress, temple, ruins, or such might be more appropriate for word choice when it is in a mountain instead of on the mountain. While inverted towers do exist, they are a bit different. If it was on the mountain, then tower would make sense.
Might have been better to not have that text involving something your characters haven't actually obtained yet unless you can make it clear that they aren't supposed to have reached it yet. If you wanted to show it off, you could have thrown in a cutscene between where your characters catch a glimpse of it as the screen slowly fades. That way the players don't feel like there is a disconnect. Otherwise, the player might wonder if there is some cutscene they missed or something.