What are the technical issues in this photo? Please mention them, I am new . Please help me

Hi @Chrit Fill ,

At all times you need to place your focus at a point where objects in the forefront falls within focus and enough depth of field to capture what is in the back. Most phone cameras have no depth of field adjustments and the one that does still do not cater for deep field.

At https://incomepayout.blogspot.com/p/cameras-limitations.html some of the limitations of phone cameras for uses for stockphotography are featured. You might want to make comparison with using compact and DSLR cameras. I'm not saying phone cameras cannot be used, but to produce images suitable for stock you must identify its limitations and work within those limitations for suitable good quality images, and as was highlighted by @Abambo the images produced will be judged on the same level as DSLR produced images which are vibrant and caters for vast parameters.

Another thing to bear in mind, some phone cameras produce washed out images that will not produce pleasing photographs no matter what. 

Best wishes

JG

Photographer and Nutrition Author