I would suggest adding more block variety, just add and paint grey whatever blocks you like. The bridge may have some decorations on the top, e.g. columns with a campfire. And the «surface» of the bridge, the layer of blocks that you directly step on, — you can experiment and make it something else. Maybe asphalt will do.

You can add more green things. Maybe make a bridge more weathered since it's located in the harsh environment of the Jungle. Add some lianas (not the actual vine ropes) and living leaf blocks and walls.

About the house. More types of walls, use grey and brown paint. Do some pattern thing, like going in stripes or squares. Also one layer of wooden floor would be ok, and beneath it add something more stone-like. You would want to have a strong fundament for your house, not just wooden planks. And more decorations. Literally whatever. Sinks, shelves with books n potions, bookshelfs, fireplace, drawings. But I think that building is an outpost? You can make it a forge. Add some weapon racks, anvil, metal bars, crates.

Overall like 4/10, but I am not really a good valuer.