lilacwoman, I had the same thoughts before surgery as well, but as Kristyn pointed out that's not actually the case. Trans women definitely have muscles there as well, the only difference (according to my gf's doctor) is that the muscles run more vertically, whereas in a cis woman they're circular. That's not really a noticeable difference though. I think the reasons for her vagina looking like a hole are probably what blackMamba said: that's it's all the dilation + things are still healing.
rejennyrated, thank you for the advice. She's going to see a nurse in a week, so I'll suggest she ask about douching then. (Btw, you and your gf are such a cute couple:3)
blackMamba, you're right that vulvas in general can be viewed as repulsive and have negative stigma attached to them in our culture. As someone who's internalized some shame I definitely know this! Also, there's a huge variety in terms of appearance, that's for sure. Although most of my concerns are related to the fact that my gf's vulva currently has some features that are very unusual for a vagina to have (eg. a lot of swelling, redness), from what everyone else has been saying that is quite likely just related to healing. I wasn't judging her anatomy specifically because it's a neo-vagina, although I did initially have some hang-ups about that and it's possible that I'm still getting over them. Talking to people who are non-judgemental, and who give me an idea of what to expect really helps though. Sometimes it's hard to assess the situation neutrally because of the sh*tload of social stigma that comes along with being trans...this goes not just for the trans person themselves, but for partners of trans people as well. After all, after the trans person themselves, it's their partner who is the most impacted by the changes.
prettypauline, yes I think you're right about it being post-op depression. My gf was so busy dealing with gender stuff for years that now that it's more-or-less resolved, she's realized that there's all this other crap she's been neglecting. According to her doctor and psychologist, this is very common (although the reasons vary from person to person). As I said, both of us suspect that in a few months she'll be doing better:)