I'm too lazy to rip this background, so here's a free pick for anyone who rips graphics. So, someone else could rip both background and layer 3, and combine them? It's a very nice nocturnal forest background, a good fit for levels at night and in forests.
Here are both images. Do mind that Ganbare Goemon 4 uses part of the screen for the "status bar", so the background may need to be raised higher.
Background
Layer 3
Here are both images. Do mind that Ganbare Goemon 4 uses part of the screen for the "status bar", so the background may need to be raised higher.
Background
Layer 3