a riding buddy of mine had a exact same accident bout 8 years ago same sort of injuries, tho his lower back and right hip were hurt.. hospital said just bruising etc.. like yourself..
may i suggest that now the swelling has come out, and the adrenaline has fully drained... you get yourself FULLY re examined... my mate ended up having major surgery, some 2 years after, on his hip (12" scar as a momento) as a result of the accident.. still has pain and requires daily medication... it limits his ability to work... yes, he subsequently got a large personal injury payout, aswell as the bike paid for.. (bike was written off ZX10 B13 model) however, at the time, it was just said to be soft tissue damage and bruising..
in your favour, they have admitted liability, so it will now just be about settling on payment for the bike if not repairable.. and also an amount for your injuries... couple of things my mate was advised to do..
1. get a decent lawyer onto the injuries... get independent medical examinations, the responsible insurer should cover the costs..
2. dont accept their first offer!! ;)
hope you get it all sorted... and unlike my mate, i wish you that your injuries arent permanent..