I agree with the above. Losing to see scenes doesn't feel good. I'd rather submit to the enemy then win the fight after. If you can retry the fights after losing then it's not so bad as a full level reset but still a weird gameplay loop to lose then retry and win in every battle.
The scenes unlocking after doesn't add to the immersion of the game though. If I wanted to just watch the gallery I would just watch a video of the gallery online instead of playing.
Looks cool though! Hope development goes well!