To start my modeling my clown in Maya i started by importing my character turn around as images on to a plane creating a box this helped me to know the exact demotions of my character and also gave me a reference pictures that i could would from to model my character.as seen on this picture.
Using the reference images from the plain i got a normal cube and started to add mesh and expanding the cube to make the torso of the character, i would would model the torso in the exact measurements and roundness as the reference pictures that i had on the plan for my character turn around. the way i created the roundness of the torso to look like a human body was by adding lots of geometry and moving it around using the edges or the vertex of the mesh this allowed add detail in certain areas like the rib-cage and the arm pits to create a smooth and realistic torso just like you would see in a human.
After i was satisfied with the torso i moved on to the neck and the arms of the clown i achieved this buy extruding the faces of the sides and top in the exactly same were a real human body has. this can be seen on this picture. All this time i was still using the reference images from my turn around on the planes to create an accurate model.
At this point when i was satisfied with the arms and position length and roundness and also details achieving all this in the same modeling process as the torso using the vertex, faces and edges. i started to model the hands and as you can see i was using the no-smooth mode so it looks more square this is because it is easier to model that way so i could keep a very close eye on the measurements and also thickness of the character it is also easier to spot mistakes in the mess and correct it then if it was on smooth mode.

At this point i had modeled the hand and stated to model the legs but their was a slight issue, one side looked different from the other and that was a big issue because both sides should be geometrical(exactly the same with the same mesh). So at this point i used a tool that is very well known to modeling 3D objects that need the same geometry on both sides this tool is called mirroring what does is exactly the same as if we look in the mirror and do an action the refection in the mirror does exactly the same action at the same time. So that is what this tool does we select half of the mesh that we have created and delete the unwanted half, and the the mirror tool create a exact replica of the half we selected and but we can not select the mesh of the mirrored half only the half that we have selected to mirror from and after that every action that we do on the selected half will reflect straight away on the mirrored half so this makes it easier to control the mesh on both sides and have the exact same mesh. Amazing tool so with that i was able to create the legs for the clown that were exactly the same proportions and not different sizes and lengths.