hi @unicornsammich1
In general good work. Personally I think number 5 suits your motive the most.
But if you want to take it further I would like to make a suggestion. Get on google images search or Pinterest and gather all motives that you associate with poison and robots. Because there is a lot more out there… It is not only green. Make a collection of poisonous mushrooms but don´t forget to include other themes of nature as well (just look at the ball fish.. who is extremly poisonous).
How to combine the theme of nature/poison/organic with Robot/metal/mechanic? Brown is associated with earth and dirt. But maybe the Robot as a metalic clean origin color but got rusty over the years. Or his poisonous aspect changed his original material… deformed its texture. What if he is overgrown with moss?
Try to tell the robot´s story through your design.
Doing some research and collecting a solid reference collection helps your creativity to discover new grounds.
Hope I could help you a little bit. Have fun creating.
