A good presentation of your modification - is sure to get more downloads than a messy one. Clearly organize your post into section, post images, tell people what keys to press etc.. Please be careful when using heavy slang, do not forget that people may be of different languages so they may not understand if you use very high slang, or making your own up.
Images should be used where as applicable. People are more likely to download a mod is you show them what it's like
Topic titles should always be organized in a respectful manor with tags.
Use always a capital letter at the start of the title.
Mod released: [REL]
Work(or while) In Progress: [WIP]
There should be no more than 2 tags in the title. If I released a CLEO MOD, it would be like this:
Where as <title> represents the title/name of the modification.
You should get the idea.