When aiming to create truly distinctive and memorable alien features, think beyond the boundaries of earthly life. Consider blending organic forms with geometric shapes, experimenting with asymmetry, or introducing unexpected color combinations that challenge our preconceived notions. Drawing inspiration from nature's most extraordinary creatures, you could incorporate bioluminescence, and iridescent patterns, or even adapt the textures found in exotic marine life. Remember, the key is to let your imagination run wild while maintaining a sense of coherence in the design, making your alien not only visually captivating but also a testament to the boundless possibilities of creative exploration.