A massive, fully enclosed Minecraft...

A massive, fully enclosed Minecraft boss chamber, measuring exactly 100x100 blocks. The architectural style must perfectly match the colors and materials of the character and weapon shown in the uploaded image (image_3.png). Use a strictly enforced palette of rich gold blocks, polished blackstone, and glowing amber/honey blocks. The room should be a grand, symmetric circular hall with solid walls that reach up to a domed ceiling, completely sealing the space from the outside. The floor should feature a giant mosaic pattern inspired by the geometric points of the spear from the image. Place a grand, intricately detailed throne made of gold and blackstone at the far end of the hall. The ceiling must have hanging chandeliers made of glowstone and honeycomb blocks for warm lighting. No open si