Babylon 5 : Starfury

One of my works in progress is a Starfury Mk1 from the Sci-Fi show "Babylon 5". The model was partly assembled, but then discontinued.

The fit of most parts is terrible and requires heavy use of putty and sanding. This is the first time I'm using putty, but as you can see on the pictures, a lot of it is needed to fill all the gaps. (The instructions even suggest where you should use it)
Some of the gaps are difficult to sand, teaching me to do this one step at a time and not wait until it's almost fully assembled.