Just needed to 'see' for myself these line drawings before I go any further. The one on the left is both front and back of a 5 x 7 in card. The image on the front of the card will be watercoloured; the remainder of the image, once it's completed, will either be coloured or left as just the ink lines. I've seen cards where the design is carried over to the backside and wanted to give that a go myself. Not sure I'm making my idea clear here but it will make more sense when I've posted the completed page.
I'm also fairly pleased with the whippet line drawing - trying to get the proportions right was a bit of a struggle but I think I got there in the end.