Tetris - background expansion

Working backwards from background up is a simple but new move here. Starting with the back gave a lot more freedom in colours and movement.

Although not exactly what I was after, it does look significantly different to other more static pieces I'd been working on.

Blobs progress

Not a huge leap so far. I'm always blown away at how long applying the layers takes! Even with a limited pallet.

I'm looking for something to plant in the foreground..