I wasn't able to beat the first half (I managed to get a single cube up in the room with the cube button behind a laser wall before giving up). The second half felt much easier overall, and I able to complete it without
too much trouble. The visuals were nice, although I can't say I'm a fan of the fizzlers or the frilly design patterns around the goo/laser cubes. The music fit, although it got a little repetitive (probably because of how long I spent on the first puzzle). Maybe it's just because of the associations with PTI, but laying everything out on the 128x grid feels a little unprofessional.
Apparently I'm good at finding broken grating in your maps, because I found another one. I forgot to take a screenshot of it, though. If you took your third screenshot, turned roughly 120 degrees to the left, and then looked up, it's the one right there. Putting a portal there will let you walk right through the grating. I wasn't actually able to abuse this to break the puzzle, but hey, glitch.
Overall, nice map. The visual style is a nice contrast from the standard test chamber style, and figuring out the next step in the puzzle made me feel pretty clever. If I had to make one suggestion, I'd say to flip the order of the map's two halves.