Build a SMALL fantasy forest watcht...

Build a SMALL fantasy forest watchtower using vanilla Bedrock blocks. Size limit: 11x11 base, max height 18 blocks. Include: ground door, spiral staircase, top lookout platform, small interior room with windows. Style: rustic woodland — spruce wood, dark oak, stone brick, moss accents only. Roof should be simple cone or sloped, NOT oversized. Use slabs and stairs for depth but avoid random block mixing. Structure must be practical and livable, clean shape, suitable for .mcstructure export.