Published video very fuzzy

The dog and the other stuff, in the beginning, is all vector. I'm not worried about those items. I can see that they're not as sharp as I think they should be - and I don't know why that is - but at the moment. Those things are the least of my problems.

I've been playing around with the bitmaps today, and I haven't been able to get them to work. Those are screenshots from our app. And the whole point of the video is to get people to subscribe to our app - so those screenshots are important. They need to look realistic. When I try to do the trace bitmap thing on those bitmaps, they end up looking terrible. The writing is just scribbles - not legible at all. The opposite of what I need. I may just not be using the correct settings for it but I haven't found any that are even close yet. I remember using trace bitmap when I first learned Flash way back then. And it seemed like you could get pretty realistic bitmaps. But I haven't been able to figure out how to do that. I keep thinking I must be doing something wrong but I'm not sure what. What resolution should the bitmaps be? Could that be part of it? I don't remember now what resolution I used for my screenshots but I can certainly change it if needed.