Honestly, Ra? This is top notch. I love the storytelling. But I will say that the second and fifth panels could benefit from some kind of background, especially the latter panel. But I guess it can be more of a personal preference as I can see how you might not want to crowd those panels.
As for fonts, I'm sure others are more knowledgeable on this subject, but you can easily find lots of sites that offer free fonts with a quick Google search. And applying them takes nothing more than unzipping them into C>WINDOWS>FONTS. You will then find them along with the default fonts in any program you use.