This is RADIO THEATER! no tv series!, stop complaining
That's why they left the balloons, and the fact that there's only one voice... you get use to it, you can imagine one guy alone in the radiostation telling the story right in the board playing the noises and adding the soundtrack... and in top of that you get the original visual caracterization.
It's a MOTION COMIC, it's like radio theater in the 40's... think about that. It's suposed to be like this.
There are also audio tapes of the graphic novel Kingdome Come, it's painted in gouache so it's beautiful... the idea is you read de comic and listen to the tape. (Both are somewhere around the web). It's from Mark Waid and Alex Ross.