I also agree with Chicky.
DOTT's characters are designed to make them look like walking talking clishees, that are sent up by exaggerating certain features which are credited to them by prejudice.
This includes both, personality and looks.
That way, the DOTT Bernard looks like your arche-type of a computer nerd.
In other words, they're caricatures.
Your characters are cartoonish, yes, but you're sticking too close to their original look. You should distort them much more, like they did with Bernard. If you compare the MM one to the DOTT one, you'll see that only his main features remained intact, like his clothes (with the pulled up trousers and so on) or the opaque glasses.
Your Razor f.ex. looks pretty tame for a punk singer. Make her hair big and wild. The mouth should be big and aggressive looking with the teeth showing (just think of Billy Idol!
). Her dress should be shredded and torn at the ends, and put some really big spikes at her collar.
Take those features, punks are widely known for to an extreme.
Or think of the stereotyped image one has in mind for footballers (big, wide shoulders), cheerleaders (blonde, cheery, fashion victim) or rock singers. If you'd stick to the 80's feeling of MM, give Syd a big hairdo as most rock singers had these days. And so on.