Hi Ralph.
Your M20 overall looks excellent. love the weathering effects you achieved on the wheels.
The one thing that I think takes away from the look of the model is the antenna's I just checked my reference book (squadron U.S. Armored Cars) and I couldn't find any bent out of shape like that.
They are shown either standing straight up or pulled back in an arch held there by wires tied to the back of the vehicle. have you considered using very small gutair strings or a fine copper wire to use as antenna's.
btw I'm not saying there are no photo's of a M20's antenna's bent like that, just that I havn't seen any.
also isn't the Academy U.S. MG set a nice little kit in itself.. I am using one to replace a kit gun myself at the moment..