A small fantasy-style jungle wood house could incorporate the following features:

Exterior:

• Foundation: A small, raised platform of dark oak or acacia wood logs, perhaps with a few strategically placed jungle wood planks for visual interest. Consider adding a layer of cobblestone or mossy cobblestone for a more grounded feel.
• Walls: Primarily jungle wood logs, with occasional accents of jungle wood planks for detailing. Vary the log placement slightly to avoid a monotonous look. Consider using stripped jungle wood logs for some areas to add textural contrast. Vines could trail down the walls, adding to the jungle aesthetic.
• Roof: A gently sloping roof made of jungle wood planks, possibly with a thatched look achieved by layering different shades of green wool or carpet to mimic leaves. Consider adding small, whimsical details like mushroom caps or hanging lanterns made from glow berries.
• Windows: Small, rectangular windows made of glass panes, perhaps framed with jungle wood planks. Consider adding shutters made of jungle wood planks for a more rustic look.
• Door: A simple wooden door crafted from jungle wood, possibly with a small, carved design.
• Decorations: Add hanging flower pots with various flowers (allium, poppy, etc.) to the exterior walls. Consider placing small, carved wooden signs with whimsical messages. Use glow berries or jack o'lanterns for subtle lighting.

Interior:

• Flooring: Jungle wood planks for the main floor. Consider adding a small rug made of wool or carpet for added warmth and visual appeal.
• Walls: Jungle wood planks, possibly with some areas left as exposed logs for a more rustic feel.
• Furniture: Simple, functional furniture made of jungle wood. This could include a small bed, a crafting table, a chest, and a small table with a couple of chairs. Consider adding some decorative items like paintings or flower pots.
• Lighting: Use torches or lanterns for lighting, strategically placed to avoid creating harsh shadows. Consider using glow berries or sea lanterns for a softer, more ambient light.
• Details: Add small details like bookshelves, hanging plants, or a small fireplace to enhance the cozy atmosphere.

Overall Style:

The overall style should be whimsical and slightly overgrown, reflecting the jungle environment. Avoid sharp angles and straight lines; instead, opt for softer curves and organic shapes. The use of vines, flowers, and other natural elements will help to create a cohesive and immersive fantasy experience. The small size should encourage a feeling of intimacy and coziness. The house should feel lived-in and charming, rather than grand or imposing.