Isn't the crew a freeride, directional board? If this is the case, this may not be the best board for park.
And yeah, based on your weight, the board may be a bit too big.
I think its a directional twin so it probably won't be that bad. And OP, for your weight, 155 is manageable in the park, but if you can return it without much hassle, get a 151. You could even probably get away with something even shorter, but I don't think the reverse crew comes that small.