Hi, thank you so much for entering! Of all of your designs, I like Entry #2 the best. I do think, however, that the trident superimposed on the trillium is a little busy. As for Entries #14 and 15, using both "OPA" and "Ontario Psychological Association" seems a little unnecessary.
I would like to see different colours....right now it's a tad Christmas-y.
Just a hint....keep away from blue (too much like the Ontario Medical Association).