You came up with something! Keep in mind that if you freewrite there's no need to thing first just start writing and describe what you see (blue, white oval, something that looks like like... and so on), next you describe what you feel if you look at it: (example) cold, tiny, uncomfortable and so on.
Once you have done that you can write what you think, perhaps there's a story, a poem or .... nothing which is fine too if you write: I have nothing to say about this.
That is what is written in the post itself.. Sometimes, I was even suggested to do that.
I do not totally agree with that. As, I think having a little value to the post is better than having nothing. I prefer writing something that I can go back and re-read it and see that there was an idea behind the post itself. Even, if this post is not my best. But, I think it holds a little value, compared to writing something that I might read again and think that it holds no value.