The proposed model and the photograph were made independently by different people by the way. Solar panels aren't included at all in the proposed model. These

The proposed model and the photograph were made independently by different people by the way. Solar panels aren't included at all in the proposed model. These are the protrusions towards the bottom left and top right on the photograph. The part at the "upper left" end of the satellite might just be a lid or a sunshade on the opening of the telescope. Beside that the tapering shape of the main structure looks similar, imo. Keep in mind that there is a wide variety of possible shapes for satellites. For that, the proposed shape doesn't look that bad, imo.