Hello scope28,
Unfortunately, I will be
Rejecting your map.
The theme isn't original, as there are many maps based around ore/mining/minecraft blocks. Please refer to the document linked in this thread -
https://manacube.com/threads/parkour-list-with-theme.20194/ to make sure your map idea is original.
The build isn't great as it's quite simple and small. I understand building something from minecraft will be blocky, so it would be difficult to have a bigger build with more shape.
The parkour is very repetitive as it's mainly normal blocks with a few ladders. Try to experiment with a larger variety of blocks and items when building parkour, as well as the way you utilize these, as this will make your map more enjoyable to complete.
The length is good for a medium map, and the difficulty is good for an easy map.
Thanks for submitting your map! I hope to see more maps from you in the future.