There's a reason ship hulls all have the same(ish) shape; over the course of history, we've found out that that's generally the most efficient shape.
It's only natural that your junk looks like a generic boat/ship at this point. Once the superstructure takes shape, the junkiness will come back for sure.
One thing I noticed is that there is a difference in the height of the stern between your build and the picture of your favourite junk; yours is a lot flatter/even/horizontal right now. Perhaps raising the stern significantly will help in getting the shape you're after?
The ship does look really good btw...
