They look good what did you paint them with to get the gloss effect?
That is a spray coat of Wilkinsons Clear Gloss Enamel, suitable for all your gaming needs. With minis I normally use Dullcote or Army Painter Matt afterwards but these look ok glossy I think.
No it suit;s it. Only thing i might add is some mess to look like old trash, no bit stay's clean for long :)
Thinking of adding some graffiti, maybe a Banksy rat or something.
Sweet nice idea mate :)