TL;DR: NSFW mode is a bit too easy, SFW mode is a bit too difficult. Consider balance adjustments to the "break free" minigame and buff clothing in easy difficulty to compensate.
In theory, I really want to like this game. But what I'm finding in practice is that, on NSFW mode, there basically isn't a real failure state, because the "break free" minigame is too easy. I would suggest either making it more difficult, or alternatively, keep it at its current difficulty level, but do not allow the player's "progress" in the minigame to decay over time (so that, if you keep triggering the minigame, it eventually becomes much harder and then impossible to win).
SFW mode is interesting, because it does not have this minigame, and so it's much harder than NSFW mode. The main issue, however, is the fact that healing is really rare and clothing is not terribly durable, so you're naked most of the time unless you're skilled enough to dodge most attacks (in which case, you're probably playing on hard or bareback difficulty, so you're naked anyway). This makes clothing feel a bit pointless, even in NSFW mode, but it's more of a pain in SFW mode because, again, NSFW has no real failure state. To fix that, I would suggest a couple of possible adjustments: Make clothing slightly more durable (especially on easy mode), spawn healing after each multi-wave fight, allow enemies to drop healing with a low probability. All of these changes can be reasonably carried over to NSFW mode, and they would mostly (or only) affect easy and medium difficulty, so they wouldn't mess up the balance of hard or bareback much or at all (so that people who currently enjoy those difficulties can continue to do so). This would also fit well with giving NSFW mode a real failure state, because then easy mode would not suddenly become too difficult.