guadaMB, can you explain your reasoning?
In general, the entire aircraft is not going to enter the water at the same time, and depending on sink rate, the first part to enter the water (generally the tail) can impose sufficient force on the reminder of the airframe to significantly change its attitude or actually break off the contacting portion from the rest of the airframe.
My initial guess from looking at the wing wreckage is that the aircraft impacted upright with the wings being nearly wings level, and again, only a guess based on the damage that the fuel load did to the wing structure.