Okay, since this is your first map, I hope that you will take this review as a learning tool, hopefully make changes, and submit an updated version of this map, as there are some very nice points about it.
I give this score due to the fact that your event scripting is very overdone and erratic, as well as there are some flaws in the map itself, that make this scenario impossible to enjoy. Just too many events too close together, with too many adverse affects to make this map completable for me. A good suggestion for scripting would be to download one of the higher rated invasions, go into the map editor, and look at how the designer scripted thier events. More is not necessarily better.
I think I've outlined above why this score is as low as it is.
The castle is very nice, and the whole landscape is great. Some definite talent here.
Map Design: 4
I love the map, although there is a flaw where the cattle farms are. If they are destroyed, they cannot be rebuilt, which is a waste of the area designated for this purpose. But the whole map is very beautiful and well thought out, with a lot of detail. Very excellent work for your first time!
In map story needed a little more depth and expansion, and you need to have a compelling storyline on your description page, as this will draw the potential downloader into wanting to play the map. Also, a minimap would be great, as this is a beautiful map, and you should put it out there for everyone to see.
Overall, work on those scripts and add a story to your maps for the pleasure of an adventure for the player. You have the creativity and the talents as a map-maker!