This high-definition zoomable image is a nuanced illustration of the symbols and motifs frequently found in Buddhist art. You may encounter these features over and over again when it comes to Buddha statues, as they are not exclusive to one single artifact. The Buddha Vairocana in the Todaiji Temple provides with a portal to look into the physical representations of the physicality of the statue.
Try not to look at the annotations and reply on your own observations first. In the first step, zoom in and ponder what can you observe from the two statues. You may also make safe deductions based on your current knowledge about Buddhist iconography. However, please bear in mind that the deductions should not be mere assumptions without concrete credibility, rather, they should be rational hypotheses hinged upon solid background knowledge. And then you can proceed to the second step -- consulting each annotation to check against your deduction and get a grip of esoteric meanings behind the each symbol.