What is the difference between an angular and linear skeletal formula? When drawing a skeletal formula, what is the difference between an angular version and a linear version?  

I was asked to draw the Z isomer of Resveratrol:



For which I drew:



However the markscheme states that:


  skeletal structure must be correct and angular not linear


I haven't come across the difference between the two before and can't find anything on google to suggest one.  Their drawing of the correct answer is equivalent to mine, however I am concerned that I may have drawn the linear version as my benzene rings are in a line and theirs are not. What am I missing here?

Their version:
Those are $sp^2$ carbons and should have a triangular planar 120&deg; geometry. The angles you've drawn are clearly not 120&deg; . 

I've not exactly come across the terminology before, but I believe this is the distinctions:


In a "linear" formula, you disregard the actual bond angles and just try to keep everything in a line.
In an "angular" formula, you draw everything according to the bond angles.


Not sure of this, though.