Adventuring in My World:This has such a fun jungle-like feel to it. The marimba panning back and forth gives the sense of space in the game and the percussiveness with the congas give an exotic feel that further enhances the adventure vibe.
Relaxing in My World: This is a nice variation of the theme with good instrumentation substitutions. I imagine these tracks functioning like day and night versions for the overworld theme.
Overall: I like that you had a personal take on the theme based on your experience with creating your own world in sandbox games. These tracks would work really well for that type of game and I could listen to them loop repeatedly and still enjoy them. I would look forward to the slow transition from one to the other as I was building up my own world in your game. Well done and thank you for sharing!