Character Designs and Images for Podcast Webpage

I have recorded a scripted comedy science fiction podcast. I need some images for character designs and illustrating key scenes. I have designed a logo using AI but would prefer a human to have a go, especially someone experienced in comics and science fiction.

I am open to ideas about what could be illustrated and would hopefully see this as an ongoing project as podcast developed.

Here is a rough edit of opening episode: https://soundcloud.com/daniel-harkin-4/sets/altered-states-electric-dreams-a-beam