Just looking at your Will kill as I have my logs from last week on this open right now. I feel like you use way too much DL. I used 10 DL throughout the fight while you used 53 (granted, our kill was almost 3 minutes shorter, but still). On the other hand, I have almost double the amount of Holy Lights. You could also improve on your Holy Shock usage a bit as you aren't using as many as you could.
Enchants and reforges look good. It is very important to get used to the other healers playstyles, so just pay attention to that and communicate your cooldown usage and you should feel more comfortable after a couple of raids.
For talents: I tend to use HA on almost every fight, so if you haven't tried it maybe you should, I really don't like the Divine Purpose RNG. Also, I prefer Hammer for Will HC over Execution Sentence. Most of the time I can hit enough people with it and that is where it really shines. Though tank healing usually isn't much of an issue for me.