The endings aren't complete yet. Each ending will get a full update devoted to them to finish the story.The endings were short except the one with mum. It would have been nice with a long harem ending with sis/mum/Haley and Rosa. That would really have been fun with all of them pregnant.
In 0.12 the Karen solo ending got the finishing update.(that's why there's more content compared to the other endings)
That route is finished but the others will still get 1 full update each.