I like custom bikes. I haven't had a bike yet that I haven't wanted to mess with, or have messed with. I've given a little bit of thought as to what must be done to make a bike look like something other then a slightly modified stock bike and the tank is very high on that list. It seems like you have a good platform to work with, but all I can see is that tank. Not that it's terrible, but it is holding it back, as it does most 'custom' builds.
of course I'm just some stranger on a forum, so take it with a grain of salt!