Here is a possible SD prompt:
A majestic Gundanium stands on a dramatic, low-angle shot, with the towering robot filling the frame from top to bottom. The camera gazes up at its gleaming white, navy blue, crimson red, and golden armor, with the sharp V-crest shining like a beacon. The beam rifles in its hands appear massive and imposing, while its intricately plated limbs seem ready to spring into action. Behind it, sprawling black and dark blue wing-like appendages spread wide, creating a sense of dynamic tension and power. The surrounding environment is shrouded in darkness, with only the faintest hint of misty fog adding depth and mystery to the scene.