Some enamel loss in several places. One part of the blue enamel in the middle of the brooch, as pictured.
Several of the white dots at the top, two are missing and one is slightly worn down. A few tiny places around the various blue enamel starburst pieces. There are loopholes for them. But without a reference to this specific brooch.
The catch and pin back are secure and works properly. These are super rare and hard to find. A very unique piece of antique jewelry.