Character Designs for STV

I have been given the task of designing the characters for the film and although I know character design isn't my strong point I am going to give it a go and try my best. Here are some of rough drawings of what I thought STV should look like, I wanted to go for the cute, appealing and lovable look with the short dumpiness to his figure. His out-dated head and attire portrays a geeky look and one which I hope the audience will become fond of...