I ask because we live in Hawaii with no seasons. Don't believe I've ever seen an autumn photo of Tuscany?? Do the leaves change to yellow, red and so on??

If there are deciduous trees the leaves will drop. Whether you will get the color show of Vermont depends on the type of trees. Those wonderful pines/cypresses won't, of course.

Olive trees are evergreen: the leaves just fall off without dramatic colour change.

Tuscany has few huge expanses of deciduous woodland, since so much of its countryside is used for agriculture. And what deciduous woodland there is, usually has quite a diverse range of trees.

They all go over at different rates, each species in a different way. So there isn't the huge red show of NE America (in fact, red is quite unusual in European autumn colour changes): there's a usually longer-lasting (because the winters are generally milder), more understated, variegated, process of change.