Echoes Tab

This my first tab 
however this might be wrong I have a intro that might sound right .
[ Tab from: http://www.guitartabs.cc/tabs/k/klaxons/echoes_tab.html ]
e|--5--4---4---------------------------------------------------------------|
B|--5--4---5---------------------------------------------------------------|
G|--6--4---6---------------------------------------------------------------|
D|--7--6---6---------------------------------------------------------------|
A|--7--6---4---------------------------------------------------------------|
E|--5--4---4---------------------------------------------------------------|
 however I feel I am missing something 
last part maybe C#m  not sure 
work out the strumming patten here :
http://www.youtube.com/watch?v=vMQ-B7ScukE