Hey there! Glad to hear you liked the game so much. ^_^snip
The game definitely has a big focus on bad endings, and having delayed ones is fine, but if someone got screwed over, it's worth thinking about it, I believe. Maybe I can warn the players more through Celeste's thoughts, or add one more escape/warning mid-sequence, something that doesn't ruin the experience overall. You did get some warnings for the brainwashing in the form of short events during travels, mentioning your mental status (these also changed your description, when you examine yourself).
I am not going to touch the maze itself (as I said, it would be too much work), but I have come to the conclusion that mazes aren't fun for most people, unless you have very specific mechanics to allow them to navigate the area (like, allowing them to buy a map first, or indications/procedures to follow and so on). Most importantly, opening with one is really tedious, I feel like. Otherwise, I like some of the ideas I used in it, but it comes at the wrong place and time.
Yeah, we don't get many M/F scenes. Celeste Star has essentially no M/F galleries, so whenever there is a man involved, I have to use tricks (I also still prefer F/F to this day XD XD XD). As I said, no big changes. It's easy to add an extra warning, but it's hard to add a new puzzle or modify an old one (I do agree that some of the puzzles are perhaps too vague in that section, however).
Off the top of my head, I can't remember the pendant, sorry, but if it was random, I do agree it's bad form.
For the exo suit, I was actually planning some randomly generated salvage missions (you know, on destroyed/abandoned ships floating in space), but I never got around to it (I did have some of the tech prepared, but it was hard to get back to the game right after I had finished it, so I never completed the script). Maybe I'll add one or two, just to make it worthwhile. Also, I definitely want to use the exo suit in the sequel.
Celeste should be a badass, I agree. It also has the nice benefit to make the sexy things sexier, if you go that route. XD
Really glad you liked the game, and I hope you'll like the sequel too, eventually. ^_^