Eddie,
That sounds like a very attractive colour scheme, I must say!
As for my (mis)appropriations of owt, nowt and summat, I'm afraid I can claim no better reason that I like the words in question. I don't know why, exactly, but I certainly do! For a non-native speaker like me, I suppose that happily mixing English from different sources it is a sort of privilege to indulge in, or, quite possibly, a trap to fall into … The thing is, you pick up words and expression from a bit all over, and if you like them, you, as it were, give them the magpie treatment, i.e. you pick them up and put them in your (linguistic) nest …
That said, I really liked Yorkshire a lot, the one time we went there, for my 40th birthday, back in 2005: not only a beautiful place, but first and foremost very friendly and welcoming people!
Oh, and I've enjoyed a bit of Yorkshire tonight, in the form of a couple of bottles of Black Sheep Ale from Masham that went very well with my tea … 
Mattias