Hi, I'm glad you like the game.
Those suggestions are all hard to implement, futa tf due to the rewriting needed and doubling the amount of variations each scene has with that character, quadrupling them if the player also has futa tf.
Character customization is limited due to how inconsistent AI is, I can add equipment you can wear, but you probably won't see it on the player sprite.
Also what do you mean by dating sim mechanic?