Sure. The Sideshow Showcase is a little different because the edits are usually smaller compared to those of hacks in the Hacks Showcase. Just take some screenshots of the changes that you made and resubmit the thread.
Thanks for letting me know, the only problem is, theres been no maps changed and the rule states that screenshots can't be of battlescreens, am I able to submit battlescreens in this case?
Just so you know, your thread wasn't approved because you didn't include any screenshots. Everything else looks fine so if you just add a few screenshots and then resubmit the thread, I (or giradialkia) will approve it.