That's it for most major positions that are commonly used or likely to be dropped into a scene – more interesting, complicated or exotic poses, using interesting, complicated and exotic props, are all a possibility, but they are also a spectrum so vast that I couldn't possibly give descriptions and breakdowns of each. Hopefully, however, these examinations have reinforced most of the common factors that you need to consider when choreographing intimate scenes that involve smaller-sized partners, and the kinds of adaptations that need to be made to accommodate them while still preserving the intended tone or atmosphere of the 'original' same-sized partner scenes.
As I mentioned at the beginning of this – this focus has been primarily on two-person giver-receiver choreography. There are a lot of other fun sex acts that will likely be involved in intimate cut-scenes, and many of the same considerations apply to all of them too, but I didn't have the scope to get into all of those wonderful things as well.
One point I do want to bring up is concerning male-male pairings, or situations where both partners can potentially give or receive. In many of the poses we examined here, translating the position to something that worked and looked good was particularly difficult for small-sized giving partners. In some cases, they simply couldn't translate effectively at all and would need a new position to replace the original in those cases. Often, in these cases, the translation for a small-sized receiver worked far more easily. This can create a temptation to simply write your scenes in a certain way – for example, to just suppose that for male-male pairings, the player character is always the receiver... this is, in fact, how the game scenes were currently functioning, when we were able to see them. Having spoken to a couple of males who sleep with males, I want to say, most emphatically, Do Not Do This. You're making scenes that are designed to be open to characters of all sorts, and making it a flat rule that a male PC will always, without question or conversation or discussion, bottom to all of the male origin characters is not a good move to make – not even 'not a good choice', I'll be frank; it's simply not acceptable design. In D:OS2, players could have a conversation leading into their intimate sequences, and over the course of them, that let them make key decisions about how they wanted the encounter to be; this needs to happen in some fashion, more than ever if you're giving a fully rendered scene – if a scene is shared by participants who can both potentially give or (and?) receive, then the player needs to have some agency in the decision.
A last point, beyond considering the dynamics of individual positions within scenes, most of these considerations also apply to how you transition from one position to another if you use multiple poses throughout a scene; when you adapt a pose for a small-sized character, make sure that you can still transition properly from the new situation to the next one, and that it still makes sense – or else adjust that transition as well to account for it. It's a small detail, but it's very visible if you miss it.
Alright that's it! Okay, maybe not quite...