Help with Azure Sky

[spt4261]

After trying my hand with phalaenopsis and cymbidium orchids, I bought a Cattleya "Azure Sky" a few months ago (and a Dendrobium Aggregatum, but that's a whole frustrating other story). I'm frankly at a loss with it. I found it very hard to pot and I'm not quite sure what to do with it in the winter time. I've put it on winter rest with reduced water and lower temperatures, but I'm not sure that's right for this orchid and I can't find anything specific online. Any suggestions? The pseudobulbs are shriveling and I'm starting to get worried.