Amazing photo,
An assassin droid from the year 2290, insanely detailed mechanical droid with male form factor, 
partially hollow body with carbon fiber and platinum parts, wiring visible, complex servos and mechanics, futuristic sniper rifle with straight barrel, droid is waiting for prey, 
The droid is crouched like a human, waiting with rifle ready on a roof top, rainy day, epic lighting, cloudy sky, city skyline, ultra realistic, insane quality and details, flawless composition, moody scene, a technological hunter just waiting, 
perfect background, masterpiece, 
highest quality,