It's Femdom... you HAVE an audience... an audience STARVED for new content.
Overall: So far, so good. REALLY doesn't need to be an accomplished female sorceress to make your average femdom fan want to grovel just to see what happens. For ME, one of the coolest characters introduced in a Femdom RPG was Fytte from Girl Beats a Hero CP2. Her appeal was that she was... just a librarian who was never in a fight... and even though by the time MC got to face her he was leveled up enough to defeat her without much trouble... unless MC was grinding for Levels, MC had to heal in order to not be beaten in unarmed combat. I want more of THAT type of casual, natural dominance.
From a development standpoint... it's kinda not great that the first fight is against someone claiming to be undefeated. Sets the bar kinda high. I'd rather have to get my ass routinely kicked by Selene and other random travelers to the inn, forced to serve them for a night... or potentially Game-Endingly longer... as growing pains that I, as an inferior male, need to endure in order to have any chance of completing a mission requiring me to conquer members of the superior sex.
Obvs, as long as the content is hawt and reasonably consistent, you have a fan
EDIT: one other thing: Eric looks crippled in his normal standing pose, which I'm sure you recognize. Seems like the resting frame of the animation is one of the steps rather than an actual middle frame. Easily fixable. I always thought small 3D rendered icons look inferior to halfway-decent pixelart icons. 3D rendering, while not necessarily intended to be photorealistic, can produce great visuals for bigger pics and backdrops but doesn't convey well visually as small sprites and small tilesets. If it was me, I'd go the traditional pixelart route.