I wanted some 28mm roses, but it was not easy to find any (Anvil Industries have some in one of their kits (
https://www.anvilindustry.co.uk/burning-rose-accessories) and I am always happy to recommend Anvil, but I wanted my own.
I think the photos are generally fairly self-explanatory, so I will keep my commentary notes to a minimum.
Remember to use water to stop anything sticking to your surface!
I used a bit of rod to roll this out, but a round pen would do the job
I used a sharp knife to peel my green stuff from the surface, then wrapped it carefully around the very thin (0.5mm?) plastic.
I used a sharp knife to make some petal shapes.
SLIGHTLY more green stuff for the next ball.
This is just the spare bits of green stuff from the triangles I cut out, used to give a bit of body to the rose.
I then wrapped the slightly bigger bit with triangles cut out all of the way around, and again used the knife to cut slightly o make petal shapes and tease out the tips of some petals.
I think this would be a very open rose, like a Eustacia Vye...
However, part of me does feel that particular rose is slightly over the top, with too many petals for tabletop miniatures.
I therefore did the same thing again with about half as much greenstuff. I kept the same width of greenstuff, and flattened it out far more, but used shorter bits, each therefore wrapped around fewer times...
And I feel this would probably look better at 28mm scale.
This, perhaps, is more like a Wildfire;
Both pics from
https://www.davidaustinroses.co.uk/shop-online a store who I would thoroughly recommend for their quality of service and wonderful roses.