I have bought the venue now and after seeing your post I looked closely at the stairs in the house, they are the same so they must have known they didn't line up, you can tell they used alt to slide them in place and try to align it a bit better.
I find that happens sometimes with objects, the lighting on the models differs a little, sometimes just lightening or darkening the colour of one till they match better works, sometimes it doesn't help at all.
I see you have the chandelier in you picture, when I first saw that after they removed the L shaped stairs I wasn't sure about it, just not to my taste, In game I like it even less, I was disappointed that the "arms" are flat 2D alphad textures instead of solid things like the base game candle chandelier, which if I use the house to live in I think I shall replace the new one with, either that or that nice crystal one from the Glitter and Glam set.
On a more positive note though the rest of it I love, the Now manor is almost creepy and I like the clever usage of missing flooring, I think if I used the Then version to live in I would change some of the decor, I understand they have to use base game only which is fine but I have a ton of stuff that would look great in a house like that and might as well make use of it.
I was also trying to think if I could use those roof pieces on my dynasty house, which I shall be rebuilding for the umpteenth time today
I have a fake mansard section in the middle connecting the two halves using a frieze and the half hipped roof, they might be too high though, I'll have to see. I do find they obscure the view in the venues attic but not so badly, you can always angle the camera down slightly and the tower isn't too obtrusive either which is something I had feared.
