TBH i think your guild is expecting to much from you if they want you to 2 man heal it. If i look at your gear its not bad if u guys are just starting to raid...so dont know if you are just taking it casually if so go with 3 healers until you are more comfortable with the mechanics etc, but i seriously would have putted the effort into getting atleast the boots from sha', Also we are a couple of weeks into MoP didnt you get any VP yet?
I would replace your healing touch glyph with the regrowth one.
Good luck ^^