Just a suggestion, but it would give us a better idea of how much Misaki stands out as the new Succubus Queen if we have a better visual of what the "mook" Succubus looked like considering we only have the stock sprites and portraits to go by, even if you just do copy and paste, with mild differences in pallets could help smooth out some of our concerns about making the first three into Succubi, especially since personally Misaki's Succubus design doesn't feel like she is of such a powerful position as the Succubus Queen, maybe a high rank Succubus, but not the Queen. Misaki's design almost feels like it would fit with any Succubus, even though as the supposed Succubus Queen she should have a presence that should be turning heads even in comparison to the other high rank Succubus, and no a tiara isn't enough to make her stand out as such a high ranking individual, if anything it feels kind of weak that "that" is the only thing that would visually distinguish her from any other garden variety Succubus. I'm not trying to say to redesign Misaki's Succubus form, but we aren't exactly confident about how well the other two will turn out when they are turned into Succubus, especially if you just turn them into additional Succubus Queens (it will kind of feel like a cough out if you do). You can keep the current outfit as the base layer of her outfit, but adding some additional garb, like an open/translucent front cut dress (to make a grand show of the assets, while keeping enough hidden to make those that see want to keep looking for more) and a flowing pelerine or similar cloak (similar to the dress, but also to sell her high standing as the Succubus Queen), would help flesh out Misaki's Succubus Queen design and sell that she is the ruler of the Succubus. For Yukako as she appears to be a priestess, have the outer garb be a sacrilegious perversion of nun or other holy garb, possibly even a black/cracked halo, as a mockery to the Divines as she changes her object of worship. For Rina it would be a simple act of putting armor plating and a flowing cape to invoke her proud warrior roots, while having the exposure be at just the right places to bring attention and desire her way.
I doubt I'll change too much, if anything about Misaki's design. I might consider showing more detail for the generic succubae you can interact with, since it does sound like a good idea to show the difference between Misaki, and the succubus forms of future girls in the harem, and a generic succubus. Although that might wait until a future update. The corrupted succubus form of Yukako, Rina, and three other not yet introduced characters have been made for months, and an additional three have been half done for a while, so I already have the next several forms mostly ready. Yukako's will need to be remade to better match with the others however, and the rest need some texture fixes here and there. So there will be a chance for me to revisit them, and make them fit better for their characters if needed.
The biggest problem I can see from your suggestions, are the clothing and accessory assets I can use. Many of the clothing assets I can use, and can be altered to fit with my designs, were made for specific body types that are not the body types I use. When trying to use them, they often wrap around the body (particularly the breasts) strange, and end up making the body, and clothes look worse. This is why I use bodysuits primarily. There is more freedom in what I can make, and I mostly don't have to worry about the clothes not working with the body. The accessory slots is where a lot of the individual armor plates and halo item you mentioned would be used. I do have more luck in finding compatible items in there, but even that has problems with textures not being able to be easily edited on some items, and the lighting working completely different on them, making them stand out too much from the rest of the outfit.
There is the option of making custom 3d outfits in a separate program, and adding them in like that. This would be the best option to make original outfits specifically for the models, and would honestly lead to better designs than what I currently have. I would even be willing to spend time in an update to remake all of Misaki's succubus images with the updated outfit if I could do this. However, this requires skills I don't have the time to learn, or paying someone to design, and make them for me, which I also can't do at the moment.
I understand wanting more out of the designs. I draw the textures for the post-corruption bodysuits myself, and I'm not the best designer/artist, so I can see how they might seem lacking at times. I'll consider making some adjustments to what is already there for the existing designs of corrupted versions of characters as those versions are introduced. My priority while editing them, and making more designs in the future will be to make designs I like, that also fit with the aesthetic and general feel of the other characters.
You, and a lot of other people here make good points and suggestions in your posts. Unfortunately, at this stage of development, a lot of my answers have been along the lines of "I'll see what I can do when I get there". Hopefully, by the end of development, I'll have the tools and skills to actually be able to bring a lot of the ideas and to bring the vision I have for this game to reality.
