probably not in screenshots, but you compare both games in motion and you can see PoE is far, far more fluid and "fast". BG2 is cumbersome and stiff. I still think it looks great, though - and playing it with the widescreen mod lets the backdrops shine!
Re: the new twitch stream - I missed, any way to watch it again? Is there a stream archive?
This looks like this is it at 1:35:50.