Awesome job in the refection. I think the shadow on the smaller plane might need a little distortion though.
Very subtle but it works well. It's not so stark like it was before. I think you could even go a little more, but that would be a personal choice.
the reflection was a nice idea but that is not how it would look, you would see the top of the plane, and it would be distorted according to the curves and angles of the plane above.
the plane looks HUGE which is the object of the excercise.
It's HUGE. Nice work matching the shadow line. In the deep sha the way your baby plane is, its lower half would be much darker than the top.
Nice job, but perspective wise, the shadow that runs along the ground would not continue thru the body of the plane on the same line as you have it shown. The plane is above the ground therefore the shadow would shift (according to the height of the plane).