The artwork is amazing, except purple would have been better than green as the theme color. I'm partial to purple. :)
Thanks. That's all down to Dan (https://sketchfab.com/carodan). He's an amazing artist. So much so that for our Robots and Zombies game jam entry people downvoted us because they thought we'd just dropped in some asset store assets when in fact almost all of the artwork was done by Dan!