Where can I find a tutorial to do something specific like this?

[#1]

Title explains it all

[#2]

Title explains it all

[#3]

Hi

I have not seen a tutorial to do "something specific like [that]".

I would use Illustrator, because it's vector.

• Draw a blue rectangle for the background
• Draw a 6-sided white hexagon
• Use the Pen tool to draw the upper and lower shapes
• Draw a Line across where the two shapes will have a second color
• With the Selection tool, select the two shapes and the line. Apply Divide from the Pathfinder panel.
• This will create a group. Ungroup it and deselect. The upper part is now two shapes; the lower is three.
• Color the five shapes as appropriate.
  
  

You could also try Image Trace in Illustrator, changing the options in the panel, to see if that would work.

~ Jane