Orchids in February and March

Here are my blooming orchids for these two months. It's a pity! Since we have moved to this much smaller house, my orchids not only declined but also bloom less each time. I know the reason why:
1) My sun room (or Ikebana room) is not as bright as before.
2) The well water is supposed to be good for plants but we have to add softening to it for household use. I was told the softened water is not good for the plants.  
3) There are not enough shady trees in my backyard to place orchids under, during the Summer time (May after Mother's Day to early October).
4) Less attentive care provided.
I think these are the four reasons causing my orchids to be not as healthy as before!