From Script to Screen: Brainstorming #2

I've made a few more mind maps and other little story ideas. At the moment I'm liking the idea of an alien trying to save his/her species by finding another planet to live on. I thought maybe making the alien a female with eggs would be appealing because most people can relate or understand maternal instinct and a desire to protect and save your children. Not sure yet though, I'm trying to not get too attached to anything just yet until I get more ideas/feedback.