Fill the balloon with water . This image illustrates why you don't completely fill the balloon you should always leave some room in the neck of the balloon, then as the form dries the pressure has somewhere to go and your clay wont split like that.
If you collected all of Earth's water into a sphere, how big would it be?
OMG I WANT THIS!!! This video by Garden Gate shows how easy it is to install an Add-A-Sphere into your water garden. The Add-A-Sphere allows your fish to "swim" above the water surface. It is available on our www.ShopTJB.com on-line storefront (http://shop.tjb-inc.com/Product929)
Included in this download are 4 posters. Posters include pictures and formulas for volume, lateral surface area and total surface area of a right square pyramid, a right circular cylinder, a right circular cone and a sphere.
I'm not sure to understand well but, the basemeshes were actually pretty basic. Sometimes it was just a sphere with dynamesh for the organic stuff, like the fish or the pig leg, other times it was a little bit of hard surface modeling in max then a detail pass in ZBrush About the carpets, it was really easy actually. It's done in max, with spline and soft selection. I did a quick breakdown :
This is a Polar map projection. It's a systematic transformation of the latitudes and longitudes of locations on the surface of a sphere onto a flat surface. All map projections introduce distortion. But since a map is easier to carry around than a globe the destortion may be aceptable https://www.google.com/amp/www.winwaed.com/blog/2010/01/11/polar-maps-and-projections-part-1-overview/amp/