Based on the pictures you provided it does appear that you have an element of surface irregularities (shown in picture 3), however, it would be best diagnosed through a formal consultation. Although this is not common, it is one of the risks that having liposuction carries, and this should have been discussed with you prior to surgery.
Correction for these concavities would utilize micro fat grafting. If and when you decide to go ahead with surgery, look for a plastic surgeon who has ample experience with both micro fat grafting and correction of liposuction deformities.
I hope this helps you and good luck
Fadi Chahin MD, FACS
Plastic and Reconstructive Surgery
Diplomat, American Board of Surgery
Diplomat, American Board of Plastic Surgery