I've made some changes to the group of Oystercatchers in the first picture. The original arrangement of the birds divided them into separate lines. I thought it might help if they were linked in some way. So I’ve raised a wing on two of the leading foreground birds to break into the open space between the two lines. I think this has improved the composition.
I’ve shown the picture double mounted ready to frame. I had to crop the image to get it level in the photograph. So now the mount is too narrow which looks a bit mean
For a half-sheet watercolour I use the following dimensions for the inner mount widths –Top and sides 8cm. Bottom 8.5cm. The outer mount window is cut larger to leave approx 0.8mm of the inner mount showing all round. I use a 2.5cm wooden moulding for the frame.