I've been on a kick playing 2.1 and older levels and I'd only known of Sphere through twitter gifs, I had no idea what if any levels you did before now.
I'd only dreamed of playing those levels in the gifs and *wow*, despite being so old it felt like that wait paid off in some way? I just had a feeling this map would be great, and it really is! from the visual design to the level layout/structure and way you used visual ques to guide the player through the level. I really love it, it's on par with Abandoned Airbase Zone for me personally.
Dying to play your other maps/remakes.