you have not posted any pic of the house compleat ? in the brick layers defence they can only use the things they are given to work with. bad management on building sites today and tight time lines are a joke. here is a clasic of wet materials. you have said they used a supplier of moter from a giant readymix devices i think you mean a silo. here you have good equipment used badly. the fact that you said there were a gang who did the first lift was replacesd. do you know why ..my bet was that they left the site because of the crap that they had to work in .and with .BRICKWORK , from what i can see in the pics, they are right it will clean off, and it will weather in time ( not over night ) i see that they are a hand made brick so there harrises are not true . ( the edges to you ) so looking down the line will apear wavey. this is normal with this type of brick. as for any other comment with the pic you posted the beds look ok and the purps look plumb.in the long run what i see looks fine (cleaned and in time ) if indout send me more pictures for a better look