New OA90 By Ocean Alexander Unveiled Evan K Marshall has done it again and this time it is working with Ocean Alexander. The new Ocean Alexander OA90 is what all the fuss is about. This new yacht from OA is marking a newer direction for the American yard. The styling is totally different from Marshall with new lines and more glass than you would expect on a boat of this size. It isn't just the amount of glass utilized but also the sculptural nature of the lines enveloping the glass...it screams modern.