I like it. Because of the symmetry. Because I cant readily identify it but can recognize that it might be a tool. I like the square crop. I'm a bit mixed about the left lower corner as the object fades into the distance. Might go a tad darker but I think its good as is.
Good luck, and congrats on your recent win!
Focus stacking is taking multiple images and combining them to create greater depth of field - usually so close-ups of small objects can have extended sharpness that might otherwise require an f-stop too small to retain maximal sharpness. Try googling "focus stacking".