Don't create pages with no contents. Any page featuring no extensive written work will be terminated. You don't just create pages just so you can do some categorization or insert infoboxes. That's not how it's done.
A Sandbox is a page designed for testing and experimenting before publishing your work onto the actual pages. In a sandbox you can do whatever you want. I have five sandboxes on my userpage and I use them sometimes to write up extended plots, design new things and test them before publishing them onto the actual pages.
You can create your own by inserting the following "User:Outerspacefan/Sandbox" onto your user page.
I told you before. You violated our policy on uploading images with gibberish headings, and you refused to cooperate when I told you to give your files clear headings before uploading them. In return you said "My choice" which meant you weren't going to do as I say, even when it is noted in the rules.
There are rules on this Wiki and all users who edit here must uphold them, including you. The point is unless you want to stay you must follow the rules and never ignore instructions that are given to you.
I told you before no image files with gibberish headings. Clear appropriate file headings are essential to this Wiki, and any file name that is gibberish will be erased. I've asked you this already and if you continue to repeat what I have stated I shall have to take regretful actions. I shall not allow this to continue.
It is not so difficult to give your images clear headings before uploading them.
Gibberish means unintelligible or meaningless speech or writing; nonsense. Start getting into the habit of rewriting the headings of your pictures before you upload them otherwise you won't be allowed to put up any pictures.