Formatting Issue (Battles)

I've made a few posts on the "Battles" forum, but I can't figure out how to format and align my text/images properly. I'm making this thread so someone can maybe help me out!

As an example of what one of my posts looks like on the edit page:

And this is what it looks like once it is posted:

You'll notice that how it looks before it is posted and after it is posted is completely different and I can't figure out why. I selected "Small" and "Float Left".

Does anyone know why this is happening and how I can fix it?

Thanks :)

Ideally, this is the kind of format I would like for my Battle posts: https://comicvine.gamespot.com/forums/battles-7/nightwing-n52-vs-winter-soldier-mcu-1871110/#113

Dude, you gotta put your pictures in the "large" format, not medium. That just messes things up.