Starting up a new folder of stuff now.
Who else to start it off but with the most Way Past Cool super speed hedgehog around, no contest.
-Their is no true tips about drawing Sonic, all that you can remember that Sonic has a total of 6 Head Spikes and 2 body spikes, note that the head spikes function pretty much like hair, they are NOT part of his skull. Go look at a real Hedgehog's skeletal structure.
-Course like with most characters, his head is circular, his body is oval/egg shaped & should be slightly shorter than his head. Legs should be at least the same length as the head.
-Bare in mind that most characters that share Sonic's body proportion are at least 100cm's tall, however this depends really.