Hello, I'm a graphic artist willing to work on your project, I am a little new to it so I'd be willing to do it for free with credit. I also want to give some real feedback, I like how the particles look and how the models look, it makes me think of a Nintendo game, especially with how the cacti would spill juice instead of blood. I could see myself playing this game in the future. I would also think it would be funny if you had a cactus on top of the car as a turret like how the Ghost Busters have Slimer. I love the art style of the game so far, keep it up.
Here are some examples of my past work:
(I did not make the pixel duck)