I need know the tax implication of Presumptive income declaration

I need to know the tax implication of below situation

I have annual salary income of 3 Lakhs. In addition to that I am doing freelance video editing service in the free time.i am serving video editing works through online marketing place which is stuated in United States. It is like a e commerce site which is used selling services. So am  getting money from outside India.  So I am getting around 5 Lakhs yearly as freelance income.

My doubt is can I declare the above mentioned freelance income as presumptive income Section 44 AD. Is there any implication for this. So that I can declare 6% of 5 Lakhs as income from business.

Any one please advise me