Icons of jobs needs to be changed

 ## Desciption:

Illustrations of jobs need to be changed.
 
 ## Why is this needed to be done?

The current illustrations dont look that good and are not uniform
  
 ## Screenshot:
<img src="https://user-images.githubusercontent.com/53618733/136665912-10411a6c-3ed3-40f8-958d-511ade590f57.jpg" alt="drawing" width="400"/>

please assign this issue to me.  @hariomch 