I love Gosho Aoyama works and Japanese animation!
I think..., maybe I like delicate relation.
For example, 「友達以上、恋人未満」
This means "He/She is more than a friend, but he/she is not lover yet."
Drawing tools : Photoshop, PaintTool SAI, IllustStudio※The English version of the SAI(shareware) is here. [link]
Sorry... I can not reply to all comments,because I am not good at English.