First, it is very difficult to tell exactly what is going even with the best of photos in ideal lighting. Most importantly, any filler issue should be taken seriously, and particularly pain or color changes. If ever there is a filler issue, you should be seen by the injector ASAP. Nothing replaces seeing and feeling the tissue to make sure there is nothing serious going on. It could be a bruise, it could be the Tyndall effect, or it could be a serious issue. Statistically it is more likely one of the first 2, but make sure to call your injector. Also, make sure that your injector has been trained to recognize filler complications and is prepared to take care of one if need be.
This does not look serious although you are quite full. I t looks as if 2 syringes may have been used but you don't mention that. the light blue could either be a slight bruise or a bluing effect you see if that area f the filler is placed very superficially. In either case they both will resolve in time.
