The name plate, doors and aft decoration figure do not require assembly. After finishing treatment place them into corresponding positions instead of the parts offered by the kit.
Prior to assembling the windows work the glass panes with fine sandpaper (#240 and finer) to make them frosted.
Use the black permanent marker to draw the grid notches on the face of window panes. As soon as the marker ink has dried work the face with the sandpaper again to remove the excess ink, so that it remains only in the notches of the grid.
Fine finish window frames.
Make a notch across the center of the face of double frames to imitate two neighboring frames.
Insert window panes into the window frames from the back. If needed, round the corners a little and sand off the panes’ edges so that they fit flat into the corresponding groove on the frame.