Not sure if my phal is drying out too fast

[OhioGranny]

Hi, I'm new to orchids and new to this forum. I'm not sure what I'm doing wrong. I replanted my new Phalaenopsis orchid (bought it one month ago) into a mix of fir bark, coarse perlite and hardwood charcoal. Now it seems to be drying out too quickly and I am wondering if I need to add a little sphagnum moss to the pot and if so, how much? I watch the roots to determine when to water and it seems the roots turn grey/silver a couple of days after watering. The flowers are all wilting and I'm not sure if it's from replanting or drying out too fast. I don't think the flowers have reached their life cycle yet and there is one bud that has not opened. I have it in a clear 5" pot with air holes in the bottom and sides. I put that pot in a decorative pot and there is about 1" space between the two pots so I believe it's getting enough air circulation. I've fed it once so far with an orchid fertilizer. I water by soaking for 30 minutes making sure not to get any water into the crown or spaces between the leaves. It gets indirect light across the room from my west facing window. What am I doing wrong???

I took these pics right after I watered it.