1) this is a little better suited for the sewing thread but until you can get an admin to move it
2) the fabric is ok. It looks really tough, which may make it an issue with that pattern but you should be ok. however it also looks more blue than black and too much paint/ribbon will make it harder to work with.
3) Your reference technicall does have darts in the top. All womens shirts (the nice button up kind) have to have darts as this is the way they fit to a more womanly curve. Its just the way that its drawn it doesnt look like there are darts. Id keep them unless you have no idea how to dart as without them, the shirt will be too boxy and not give the flow you need for that piece.
Hope this helps!
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