I bought this orchid phalaenopsis early last month, with two stems, three flowers and three buds. A couple of days later, it started dropping the flowers and the buds (a bud blast?) - I thought it was lack of light or due to close proximity to other plants. It was only till it dropped all the buds and flowers that I moved it to a location in which there was much more light (which is like a greenhouse). Now a leaf at the lower part of the plant turned completely yellow. Just for your info, mine is a meditarranean climate, which in January has an average temperature of 13 degrees celsius (56 fahrenheits). Attached is an image of the plant, would be really glad if you could help me out!

I have some more images if you think that the below image is not sufficient.