Hey, I noticed that this is your first roleplay, so I thought I would stop by and give some advice.
First things first, you should work on getting more detail into your introduction. Low detail roleplays attract some of the more negative players that look to abuse and control what has not been fully thought out. For example, you gave very little detail as to the illusion that the aliens know to be the Secret Colony.
Proofreading is also something that is important to do. As you get better at roleplaying and English in general, you will find mistakes much quicker and they will become increasingly aggravating. While having mistakes hidden within mass volumes of writing is unstoppable, simply re-reading every paragraph right after you finished it will help to reduce the number of mistakes significantly.
Learn
BBCode as it will help you with formatting. It is the Hypertext (formatting) Language used on this site and is relatively easy to learn. Once you have a decent grasp of it, your roleplays, posts, and characters will all look significantly better.
Go to the forums and make ten posts. This is so that you can unlock private messaging, which is important for communication and a great place for testing and "saving" BBCode.
Avoid making storage rps. They garner significant hate around here and it is better just to avoid opening yourself up to that. I recommend using Google Drive for storing your ideas, but any text editor that allows you to save works just fine.
Add rules to your roleplays. This is important in that it helps people to understand your limits as a GM and how far they can go as a player. There is a small caveat to this. If you put the rules in while making the roleplay, they will be deleted. This can be avoided by submitting the roleplay then hitting the edit link (right after the roleplay's name if you are on the introduction page), adding the rules and resubmitting.
Make a character sheet (cs, skelly, skeleton). These help to create a standard of quality and detail in your roleplays, and the lack of them can scare off good roleplayers while bringing in the bad ones. They also help you to find out who will actually pay attention to the rules. You should also make sure that the cs doesn't contain too much information about a character as that can scare off a lot of players that are looking for more casual roleplays.
If you are not very familiar with roleplaying in a post by post or text chat environment, get used to playing your character in the third person. This makes posts easier to read for others and makes it a little bit easier to find out who is doing what. Also starting every post off with a title that includes your character's name helps.
Hope this all helps.
"There is a realm of existence so far beyond your own you cannot even imagine it. I am beyond your comprehension. I am Sovereign." Sovereign, Mass Effect