I got my result today.
S-90
W-90
R-85
L-90
Tips:
In writing essays: Make it close to 300 words as possible. I think mine's around 299.
In describing image/graphs: Your FLUENCY in speaking about the details of the graph is what matters. Make sure though that you include an introduction, highest, lowest, conclusion.
Most importantly, stay calm and don't fret.