1) Wipe any dust or grit off your pumpkin. Then apply a base coat of paint. Try pick a colour that will match the colours you add detail with later. You can leave this to dry for 3-4 hours before ...
PVA filament is an interesting filament type, for the reason that while it can be printed with any FDM printer, it supposedly readily dissolves in water, which is also the reason why PVA glue sticks ...