Well, well there aren't many people starting their first Planet MInecraft Upload with somthing that cool.
The ellipse is well done and the size is also very good because it's not oversized. I am not a fan of the fire and netherstone but that is something that shouldn't count as bad. Your picture presentation is very nice - never tought about making one instead of four pictures, when I take the same photo to diverent daytimes - also I big plus for that. Sadly there is no description. You added a download; you don't belive how many people don't.
But there are also a few things I don't like. There is no way to enter the upper stage as visitor; the way around the area is looking very nice but it is no reachable so it's allmost pointless that's so good. Similar at the figth ground - here you can only enter by jumping over the fences; what should be right and there is no way to leave (except death).
However you did a nice job; go on with it!