Now, this strikes me as a little strange. Considering how good the mart looks, you seem to be regressing with the newest "Gen V" building. The mart's roof, for example, is well shaded, giving the illusion of depth, whereas the newer building looks horribly flat. In the same way, the mart is a very nice size, whilst the new one is too small and cramped. Also, is that supposed to be a wall surrounding it? It's very hard to tell what it is, and I would recommend removing it entirely.
It almost looks as if you've pinched the mart from someone else xD However, assuming it's yours, I'd try to make a Pokémon centre to make a pair. I think that'd work well.