An ethereal and celestial-like tunnel, fashioned from symbols of the Ethereum cryptocurrency. Imagine this tunnel as an expansive gateway in the cosmos, swirling with light and color. Enrich the scene with hues of Ethereum's logo colors such as deep navy, cyan, and white. Flashes of code, symbols and pictorial representations linked to Ethereum should adorn the tunnel. Furthermore, the surrounding universe should be dotted with sparkling stars and distant galaxies. The mystique of the blockchain technology should permeate the scenery, making the entire composition not only emblematic of Ethereum but also extraordinarily fantastic.