I'm always a fan of text based games, and don't always need pictures, but since the advent of AI (and more importantly my learning of how to use it myself) might I suggest considering the addition of a system by which players can upload art themselves for characters. Honestly even if I have to open up the game files and put them myself I wouldn't particularly mind. I think a lot of text based games miss out on more success when they lack pictures, which despite satisfying a niche, I think would be better served by allowing the option I just mentioned. Coding is not in my wheelhouse so forgive me if such a system is a terribly involved process, but I think one of the nice things about Lilith's Throne (which you will no doubt get compared to a lot since those fans (myself included) are itching for someone to put more effort into a game with the same base formula) is that it allows for self-submitted art. Another game that does this is Strive for Power and its sequel.
Although I am in a love hate relationship with both games. I feel Lilith's throne has the better sandbox, specifically the DETAILED customization, the serviceable skill trees and leveling system, much more diversity in randomly generated npc's (in terms of races and other stuff falling under customization,) and the ability to put multiple images for the same character. Strive on the other hand (IMO) has a better gameplay loop, has more story (which despite me not being terribly invested in p*rn game stories, I very much enjoy having goals/objectives to pursue,) and has a much more put together presentation. I think the brothel/business aspect of both could do with more careful focus since I think both games suffer from this thing where I reach a certain level of efficiency early on and lose a sense of purpose outside of adding more npc's to a growing harem.
I'm not even sure this game is going for all that since this appears to be a dungeon crawler, but even if this game considers simply having party members that join you, be they scripted or randomly generated, I think the game would benefit from prioritizing allowing the community to make things for their own instances that they can share on here with others. That in addition to creating a solid enough gameplay loop that incentivizes the player to keep playing in the form of measurable goals/events. I wouldn't suggest you go the route of Lilith's Throne (i.e. creating a serviceable version of what I just described and then stop developing outside of random bugfixes and community submissions) but I recognize from the description this is a side gig/not main focus deal, so take all of this advice with a grain of salt as I myself am no developer, a beggar who fancies himself as someone with good ideas via delusions of grandeur rather.
