You could ask a higher rank member to quote your post and then the image will show.
Forgetting that you can wait until you're Junior Member and you will be able to post images.
How many posts required to become junior member?
8 More activity post. Though you need to have 8 eligible activity. Potential activity is 1 per day, updated every two weeks i believe. Basically after the next activity update, you'll be able to go up to 42 activity i think, up from 28.
1 per day? I think it doesn't work like that. You can make 14 points of activity in a single day by doing 14 posts if you didn't do 14 posts inside the 14 day period where you can do said 14 posts, so you can make 14 points of increment each 14 days.. confusing right, well im not sure how it works but I can tell you that im about to be Hero Member soon, I think by early January. So just keep posting as regular and you will get there anyway.