That sucks mate, really does.
I will warn you though, I really do hope they write it off, it would have to be a ripple in the roof or the actual passenger compartment, but I do hope they write it off for many reasons.
One, selling on one of them when the HPI check is done and it comes back looking like a christmas tree will really hurt what you will get.
Two, its gonna take WEEKS to repair, my sister hit her 147 into a car park pillar (pillock!) and they have to get the bonnet from Italy itself plus a whole load of other parts, to be honest the accident was very similar to the front end damage you got on yours and it took 4 weeks to fix my sisters.
My biggest concern for yours is under the bonnet, I see the bonnet has ridden up, heres hoping its not the bonnet latches that have given way to allow that to happen and the engine bay itself as thats proper pricey and you could be looking at a write off.
Oh and Alfa paint it bloomin expensive!
Wishing ya luck today matie, just be grateful you got out unscathed, for an Alfa they actually stay in one piece quite well
m@