I'm interested in this game too, love the art. From the web demo what I played I agree with @MrDynamite. The difficulty level seems high. First mission I ended up just getting beaten (by the last remaining goblin) got 40 gold and my two characters with 200 lust. Given it takes 50 gold to remove 50 lust I can see that sending me broke fast.
I'd suggest maybe10-20% less lust damage from enemies. Gold drops from defeating enemy parties (not just the gold you find along the way) and halve the costs of lust removal eg 25 gold for 50 lust. That would be a starting point to see if it helps balance.
I'll check out your next demo and if I like the balance better I'll likely join as a backer. Again love the art.