Half Sylvan
Most of the description of a half wood elf of Toril will apply to a half sylvan elf of another world.  However as sylvans are more muscular than other elves a half sylvan will be much stockier than the wiry half wood elves, and closer to an average human physique. Their skin will also be less coppery, more of a light tan. Depending on their human parent their eyes are hazel or brown, occasionally green but never blue.  The hair colour is also affected strongly by the human parent, so can be anything from dark blonde through coppery brown to black. Like half wood elves half sylvans can usually pass for human if they want to. 

Half sylvan males are between 5 1/2 and 6 1/2 ft tall, and weigh from 120 to 150 lbs; females tend to be 5 inches shorter and much frailer at 20 lb lighter.  Half sylvans come of age earlier than humans at about 15 but live much the same time as modern earth humans - middle aged at 50, elderly at 75 and very old at 100.