I have never tried actually forging seriously on a competitive map before. Although I don't think of it as a jewel, I think it's pretty good-looking for my first official map. Please give any feedback to me! Also, the main geometry is almost done. Only two more rows of blocks left.
Definitely not bad, I think it's benefited you that you've been around on ForgeHub for a while without making a map, that way you can watch others and see what it takes to make a good one. That being said, this isn't perfect. I'm only seeing a few routes to take to get across the map, you should considering adding more options to players. While you're at it, you should consider more cover as well. The last thing I am going to list is a personal preference, add more height variation. I know I was very brief with this, but it's looking good and could be transformed into something nice.
It's designed so that there are 3 or 4 paths to each base. I know it may be hard to tell from the pics, but would that suffice?