Help Silly Graphics

[vidiware]

I got a silly "tail" after the image in a color i can choos by my self,

but i want it to be transparent. Here is the code:

 

Private Sub DrawAll()

   Dim Airwing As Bitmap = New Bitmap(Environment.CurrentDirectory + "\images\airwing.bmp")
   Dim AirwingX As Int32 = 0
   Dim AirwingY As Int32 = 0
   Dim LastAirwingX As Int32 = 0
   Dim LastAirwingY As Int32 = 0

       Dim g As Graphics = Me.CreateGraphics()
       g.DrawRectangle(Pens.Transparent, LastAirwingX, LastAirwingY, Airwing.Width, Airwing.Height)
       g.DrawImage(Airwing, AirwingX, AirwingY)
       g.Dispose()
       LastAirwingX = AirwingX
       LastAirwingY = AirwingY

EndSub

 

Im supposed to move the figure with the keys and that works but i cant remove a silly tail that is made by different things...

Look at the image

 

The PictureBox is is makeing a "green tail that kills the black one"

But the LoadFromFile image is making a silly tale...

And when they cross each other... it look stupid...

Can sombody help me remove this?

problem.zip