I have worked in different clubs at IT section in my varsity and designed T Shirts mockup for different occasions.
Used Adobe Photoshop as design tool most of the time.
I also designed logo for my collages association .
It was designed in Adobe Illustrator CC and photoshop was used for color correction.
Throughout the learning process I also experimented different vector graphics tools and options.
Designs are made in Illustrator.
I am also experienced in designing FB event contents.
These are also designed in Illustrator.
Finally , I can say that it is also possible to create 2D illustration in Blender as like this apple.