Great design and totally whimsical!
Printed at 300% and the parts fit perfectly after a slight sanding. Joined everything with contact adhesive glue.
The green filament turned out a bit darker than expected, so I may print another with a lighter green!
Final dimensions of each are 220mm (H) x 95mm (W) -- 8.6" x 3.7" - the AA battery is for size reference
CCTREE / eSun PLA
Red, green, skin, white
Bed @ 52 deg C
Nozzle @ 210 deg C
Nozzle Size of 0.4mm
Print Speed of 40mm/s
When scaled up it obviously takes a much longer time to print, so be prepared to wait! ;)