I loved reading those early strips. When you've developed a strip yourself (in my case more than once) it's fascinating to see how other people go through (often) the same process.
My Dennis-type character is Bunty the Bo'sun, he was the other half of the Blacknose The Pirate double act. It took me a while to get who he was and how to draw him, as well as Blacknose.
These things just cannot be done straight away, you need to be able to draw/write a hundred strips to find your feet, and you need someone to pay you for that.