Day 3: Aliens
I decided to take the thumbnails I liked and work on them further.
Day 3 Word: Bio-luminescence
The Izzit-Tizzi is named after the unique sounds it produces when startled(and as a mating call). A cave dwelling creature, not unlike a terran bat, the Izzit-Tizzi has been rendered blind through decades of darkness. The small mammal engorges its throat sack when startled or mating, producing bright colors and loud noises. Sadly this also alerts any other predators near by, and due to this, the Izzit-Tizzi is believed to be endangered.