Cool MOC!
Which pieces did you use for the head? I don’t recognize either of them.
My one critique would be that in my opinion, this character looks more like a villain than a toa, what with the monstrous looking mask choice. To me, he looks like the king (the lime green piece resembles a crown) of a clan of barbaric goblin warriors or something.
I’m gonna predict that the next one is a toa of stone. It was a creative idea to show the silhouette of the next character. Makes me excited to find out what they look like!