My old art I found and try to finish. Concept for movie Ultron in "Avengers".
"Ultron-1 was constructed by Dr. Hank Pym of The Avengers as the famed scientist/adventurer was experimenting in high-intelligence robotics. Ultron became sentient and rebelled, hypnotizing Pym and brainwashing him into forgetting that Ultron had ever existed. He immediately began improving upon his rudimentary design, quickly upgrading himself several times to become Ultron-5
Superhuman Strength: Ultron is incredibly strong and can lift at least 75 tons.
Superhuman Speed: Ultron possesses greater speed than the finest human athlete.
Superhuman Durability: Ultron's outer shell is usually composed of Adamantium, rendering it almost totally impervious to damage; however, his internal mechanisms are generally less durable and more easily damaged. His skin composition is about (.5 inches thick), neck, knee, ankle, elbow, shoulder, wrist, and finger joints are finely tessellated titanium alloy to permit flexing. He is able to withstand concussive blasts and heat of a 100 megaton atomic bomb.
Concussion Blasters: laser channeled plasma beam with high and low density plasma options.
Tractor Beams: high frequency pulsed magnetic graviton particle containment fields. Computer-assisted field control configures gravitons into various shapes which alter the local effects of gravity.
Encephalo-beam: located in head cavity, which plunges its victims into a deathlike coma. The latter ray also allows Ultron to mesmerize and outright mind-control his victims, or implant subliminal hypnotic commands within their minds to be enacted at a later time.
Energy Absorption: Multi-spectrum resonating inducting antenna array convert electromagnetic radiation into electric energy for use or storage.
Program Transmitter: located in head cavity, the program transmitter can project Ultron's entire 3.2 terabyte memory/personality system into some computer systems by means of a collimated, high bit-rate magnetic inductance beam. He can beam part or all of Ultron's programming into remote locations such as computers or alternate robotic bodies. Ultron can often control other machines remotely even if he has not transplanted his consciousness into them. One recent Ultron model developed hive-mind technology, allowing him to animate and control hundreds of alternate Ultron bodies at the same time, becoming a robotic one-man army.
Ultron is one of the world's greatest robotics experts, allowing him to easily design and build new bodies and weapons."
Source: Marvel comics wiki