Those links didn't work for me either, nervisfr. Which boxes were you looking at? Or was it the vehicles?
At any rate, I painted some of the display models (so I may be biased). People have said that the Blue Moon figures are too big to mix. The actual figures really are about the same size as my Pulp Figures cops and gangsters. The major difference stems from the cast on those bases. Once you base your other models there is very little difference.
I don't care for some of BM's cast on bases, but I really liked the sidewalks on the gangsters and police for some reason.
I've only seen one of the trucks up close, but I liked it. Few peices to assemble and what looked to be a very nice parts fit. They are coming out with drivers and firing passengers, which will dress up the game nicely.