I'm not sure I hit the post button, so hopefully you won't get this twice. Swelling and bruising are normal after surgery. Any time tissue has been removed, there is some "dead space", or an area where tissue was but now there is nothing. Part of the reason for your wrap is to close that space by pushing what ever tissue was not tacked down under the skin against the muscle, otherwise fluid may accumulate in those areas. Do you have drains?
Bruising is normal as well. Even a gentle surgeon does some pulling and there are capillary bleeders that may ooze inside. As the others said, you can expect about a year before you look normal. I had my chest surgery done in late winter/early spring and was mowing the lawn shirtless that summer.
If you have swelling that you think is increasing, call your Dr. The same goes for any excess bruising or leakage of fluid or blood from the incision site (if its not from a drain). Otherwise, try to be patient. You will have the rest of your life to enjoy your new chest.
sam1234