sci-fi astronaut, dynamic pose, visor reflection, futuristic armor, glowing details, weapon in hand, action-packed, alien landscape, floating rocks, distant planets, starry sky, blue and purple nebula, harsh light from above, dramatic shadows, full-body shot, 3/4 angle, high-resolution texture, detailed environment, atmospheric effects, lens flare, cinematic composition, advanced technology, energy beams, space exploration theme, tense atmosphere.