Okay, I'll be honest here, I think they're horrible.
This scale is totally forgeted to begin with, there's a lot of slope use where its not needed and it's placed where it isn't needed. I'll list flaws according to the picture order starting with the first and top one.
one; deck is awfully small, ship itself is almost the size of an apache (???) and the it'd be cooler if the sails were actually down.
two; not much to say here, it isn't that bad but the damned wheels are too big, practically the size of a blockhead.
three; yet again with the wheels and size, very off proportion. The shape is well done though.
four; bus is incredibly tiny, around a 4x4 walking space, which is really small, should at least be 8x8 or even 6x6, with seats on both sides. Take a look at Barnabas' vehicles, they're a great example, he doesn't overuse slopes and such either.
five; just super off scale to me, that's about it.
six; one hell of a train, nice job. I'd remove some details on it, but it's pretty, you've struck gold on this one.
Hope this helps in one way or another, I just felt like there were so many flaws when I saw this, it struck me like a rock to the head. Well anyway, here's a suggestion, make an M1 Abrams tank, that'd be neat, with super accurate scale!!
