I have never made orange wines, per se. But I have fermented some second wines with white grape skins. And I've tasted orange wines. In Georgia, where it is said grape wines were born, they have at least a 6000 year old tradition of placing their grapes in a large kveri underground and leaving them for a year or more to ferment and clarify never removing the skins and sediments. Some of the wineries are still doing it this traditional way. They are very interesting wines. You will get more tannins and bitterness, so if that's not your thing, I would not bother.