few thoughts from an obs anaesthetist... MW sounds like she perhaps doesn't go to many elective section lists!
Re. announcing the baby's sex - have never seen it done after the MW checks. Most often the surgeon holds the baby up immediately after delivery so either partner/patient can see or they can tell you if you'd prefer just to be told. Most often we're able to drop the drapes (you won't see anything except the baby!) so you can see if you want to. If there's a particular reason you don't want to know until after the baby's been give a once over by the MW then that's fine, but it'd be unusual.
Re skin to skin, all being well with both mum and baby, then it's pretty routine...if you want it. Obviously if the baby needs some medical perking-up then that's the priority (but the routine checks by the MW can be done later). It can feel uncomfortable having a 3-ish kg lump plonked on your chest when you're lying flat and numb up to mid chest level, but a lot of women are keen to at least give it a go. Equally, if you'd rather the baby's wrapped up and held by your birth partner until you're back on a comfortable bed then that's fine too (or you can see how you feel with skin to skin and if it's too much then change plan & partner hold them). It isn't uncommon to feel nausea intraoperatively or even vomit and that can make skin to skin less practical, but again, you might feel fine and not need to worry about it.
If you want photos then bring a phone/camera - often if all is going smoothly there'll be someone in the team who can take photos. Lots of places have bluetooth speakers these days, so if you have a music playlist you want then put one together (we will judge...especially if there's Ed Sheeran!). If your birth partner's keen to trim the cord then that's often an option (surgeons have to do the initial cut but can leave it longer so that it can be 'trimmed'). Some women have strong feelings about the placenta - you need to let them know in advance if you're planning to keep it (it's a relatively unusual request but is an option).
It is important to remember that while it is 'an experience' it is also a major operation (for some women/babies it's a more major procedure than others depending on the reason for doing the section). There are some things that have to be done for safety reasons and if there's 'medicine' that needs doing then that takes priority over the 'fluffy' stuff, although we always try to make it as nice as possible.
It may be helpful to look a the labourpains.org website if you've not found it already. There's a section about anaesthesia for c-sections and IIRC a video that shows a fairly standard set-up. HTH.
(edit to say: also worth knowing that even if you end up with an emergency section (eg. if you go into labour ahead of the date etc), then actually quite a lot of the above still applies, but there will just be a bit more time pressure on staff to get things done a bit quicker to keep you/the baby safe.)