I think the main answer is "time". Some years of freehand drawing and a bit of humor or some ideas flashing in your mind then help a bit 2 giving the right style. However it's just a matter of time. Spending 10 hours on a work gives a certain result, 20 mins gives another. bah all i miss is the flashing ideas... spend average number of 7 hours on each sigs.. sometimes 5 hours uhm not sure i think 5 years hand drawings.. bah.. i need ideas bah i used to make stig comics.. they just started to bore.. me