A good start, but they seem a bit bright and slightly blurred, this would suggest that your shutter speeds were a bit slow.
Try 1/250 at f11 (ISO 100) as a starting point next time, you can open up to f8, 5.6 or 4 if you need to - depth of field is not an issue over such a large distance - but different lenses are sharper at different apertures. Maybe process into black and white for better definition?