Errr, I don't understand. You mean you drew this ? Because this is just a coloured page from chapter 363 but your description is a bit confusing, maybe it would be better if you say "colouring" instead of "doujinshi" ? I may be the only one to misunderstand you - and as english's not my mother tongue, it won't offend me if you tell me that i actually misunderstood - but I still think your description's a bit confusing ^^'
Anyway, nice colouring ! =)