Solar system planets and sun

My eight year old had a project in school about our solarsystem, so we decided to print out the planets according to his teachers guidelines, and made a quick design in Tinkercad using half spheres with a thickness of 2mm You can find the instructions in Dutch in a picture, but to give a quick try in English. Here are the diameters. - Sun 14cm - Mercury 2cm - Venus 2,4cm - Earth 3cm - Mars 2cm - Jupiter 8cm - Saturn 5cm - Uranus 4cm - Neptune 4cm - Pluto 1cm (Yes we know about that Pluto-thing)