Unfortunately some of these designs aren't feasible because the cuts won't work. It isn't possible to cut 'into' a piece of glass (imagine the 'mouth' of pacman) when making leadlights. You can see something like this in the first image where the flowers overlap the blue pane in the middle of the image. That blue pane is an example of an 'impossible' shape. At least this is according to an uncle of mine that has decades of professional experience designing, creating, and repairing stained glass and leadlights.