I tend to work in a rather intuitive way (maybe that's just a nice way of saying completely unplanned and disorganised!) - I felt first with my embellisher in a sort of spontaneous mess, and then I bead and embroider along contours whispered to me by the felt. I rarely, if ever, plan layout in advance, and although I usually have a rough idea of the finished overall shape even that sometimes takes me by surprise...
Two cases in point, finished today:
'Cephalopod' - somehow became reminiscent of an octopus!
'Meteor' - some sort of pomegranate asteroid fallen to earth?