Very nice that you want feedback from everyone. Bravo. I think Mia is the weaker of the two games because you can't really tell what the main thrust of the story is. Maybe if the MC had a goal, like getting a threesome with Mom and Sis, it'd be clearer. Echoes of Lust is not only easier to play because of the engine, but the narrative is a lot clearer. Manipulate the day repeating to find a way to fuck the girls. Maybe the more sex you have with them, their desire for you increases, as if their bodies remember how great it was.