Seed for the guy who asked. Will tag in the comments.

To the person who wanted a seed with this type of location here is the seed.

1962031784781712650

For context, ypu spawn at the top left corner where that small grey dot is a jungle dungeon.

Surround the island isolated in the river infront of this, you gave a surrounding jungle biome, hill/mountains (not high snowy mountains im afraid. A birch biome that leads to a spruce biome.

Im not sure if its 100% what you wanted but yeah