The pixel art image prominently features a stylized, ornate Celtic cross at its center. The cross stands upright, its vertical shaft and horizontal arms crafted from what appears to be dark, perhaps ancient, wood or stone, intricately adorned with golden-brown interweaving knot patterns typical of Celtic art. At the very center of the cross, where the arms intersect, there is a glowing teal or turquoise circular emblem, radiating a soft light. The cross is positioned in the foreground, slightly angled as if viewed from a low perspective, dominating the lower and central portion of the frame. Behind and around the cross, the environment is dominated by a dramatic sky filled with bright, jagged bolts of lightning. These lightning strikes are rendered in a vibrant yellow-green and white, emanating from behind the cross and spreading outwards across the upper half of the canvas, suggesting a powerful storm. The sky itself transitions from a dark teal-blue at the top to a lighter, more ethereal teal-green closer to the horizon, illuminated by the lightning. The very bottom of the image, below the cross, depicts a dark, silhouetted ground or sparse foliage, rendered in dark greens and browns, creating a sense of depth and a low horizon. The dominant color palette consists of dark teals, deep blues, and muted greens for the sky and environment, contrasting sharply with the vivid yellow-green and white of the lightning and the golden-brown and dark brown of the cross. The overall color scheme is dramatic and atmospheric, using complementary colors to enhance the visual impact of the glowing lightning and cross. The overall vibe evoked is one of power, mystery, and perhaps a touch of ancient reverence, given the cross's design and the intense natural phenomenon surrounding it. There are no additional UI elements or text.