Thanks for the feedback! We can certainly add a little guide in the gallery mode in future updates. If you are still curious, after beating the Alraune there is an NPC that appears in the room to the left (don't go right or the demo will end!) where you can buy the gallery scenes. If you leave the area he will move to the tavern to make him easier to access from the fast travel point later.
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Wait, what do you mean there is actually an NPC? oh dang it I have to do the whole boss again! (it might be fun), you could definitely add a "warning" to stop players to actually go to the far right and "stop the game", as another fact I just remembered, I find the boss quite enjoyable (besides the issue with the dagger combo) but there is just another thing I just remembered that kinda got me stuck at the caves when I had to go through the narrow passage, and that is the "ground dash" action, I'm not sure if I did not saw that at the beginning, but technically speaking it is not intuitive unless you are trying random stuff, and thus I think it would be good if it was also an input shown there, and ofc I think it would be great if you could actually move while crouch, but thats just me.