Yes, it is quite common for the two breasts to settle a bit differently. Give them at least 4-6 months to settle. Best of luck.
Post surgery concerns
From your description and photo it appears that everything is progressing normally for this early stage and the result looks good. It would be unlikely to have CC this early. Yes, they commonly progress through the recovery process at differing speeds. Note your concerns to your surgeon and follow her/his instructions for the best opportunity for the best result.