yeah the rules say you can only post one pic/gif per thread per one 24hr period, so you will have to wait 24hrs till you can post a different one in the same thread (wait for the MODIFY option in your first pic's post to vanish, when it does your 24hr window has closed and you are free to post the 2nd pic/gif), so you best remove that 2nd gif before a mod does it for you.
AD

PS that 2nd gif is awesome, I am so saving it in case the mod removes it before you do.