Personally I wish that romance in this game could be a little harder, because right now it's really simple to pick up girls and have sex with them. Also it would be nice to see some cheating system where partner/husband of the girl, could catch his wife cheating and for example attack player.
But right now I agree that this game need more diversity in general look of the girls. More body types, breasts types, hair, clothes etc.
My own personal copy I've been maintaining outside of the mod actually does this lol. All I did was reduce the amount of love you gain from sources and capped the dialogue options to 1 per time tick... It was that easy to make this game more realistic. On that plus side it also meant serums with super power are actually amazing, because I can dose them with +40 to love and have them making out with me as a stranger as you'd expect with some kind of super love potion.
There was a couple other changes I made too, if a girl reaches 100 novelty she loses 10 love/slut toward the player at the end of the day if she isn't Breeding Fetish, Cum Slut, mind controlled with trigger word, loves big dick, 300 obedience, or a dungeon slave. So if you ignore a girl for too long then she will become cold toward you and believe me maintaining less than 100 novelty gets really challenging once you've got 20 different girls going at once. Especially going into the last major change I made, at each stage of pregnancy she raises all of your costs by a percentage subtracted by her love. At "I'm pregnant" it's 10%, At "Breasts swelling" it's 25%, "at "bulging belly" it's 50% and birth is 100%. If your costs were 500 and you had zero love then you'd go to 550, then 687 then 1031 then 2062 from ONE WOMAN PAID PER DAY. If you tell her to say to her boyfriend/husband that it's his then you pay nothing. I'm still working on the part where you can raise your daughters with better stats and have them replace their moms at jobs, but the game really needs a major overhaul here. The business part of things is ridiculously easy, making perfectly bred children unnecessary even with $20,000 a day child support payments. I think if I ever finished my copy I'd probably post it as an alternative mod, but I want an actual end-game that requires selective breeding for perfect stats OR sculpting a harem of perfect workers that allows your company to remain afloat during some dangerous time or something.