@Yelloms @iDogeTwinkie , Nicnicnico is right it is layered from bottom to top:

Lava
Air
Green Glass
Lime Glass
Green
Lime
Green
Lime
Lime

But of course you can do it with any color just pick the two colors close together to alternate

The room it is in is 40 x 100 which means it was 28,000 glass blocks.... cool effect, pain to build.

Shiiiet it seems like I got me something to do today, tomorrow and the days and years after that xD