Lets look at your on site SEO.
Google begins with the page title. You have:
<title>Mahmoud Sayed</title>
This indicated to Google that your primary keywords are Mahmoud and Sayed. Nothing there about the services you offer.
Moving on to the description:
<meta name="description" content="A leading creative Graphic Designer in Abu Dhabi providing top quality services for Branding Consultation, UI/UX Design, and Digital Marketing.">
This isn't a ranking signal but it will appear in the snippet so Google will look at what you have written. Mahmoud Sayed doesn't appear in the description so Google has to guess it's taking about you. You say you are a leading designer - so Google will be looking for evidence of this in your site. You say you are a branding consultant, this means you don't do any designing, you just consult.
Now the keywords. Google stopped using these as a ranking singanl many years ago. But thet will be indexed to see if you are spamming:
<meta name="keywords" content="branding, corporate identity, stationary, logo, creative logo, brand consultant, brand guidelines, printing, packaging, brand identity, marketing strategy, graphic design, brochure design, advertising agencies in abu dhabi, advertising companies in abu dhabi, branding agency abu dhabi, digital marketing agency abu dhabi, digital marketing companies abu dhabi, event management companies in abu dhabi, event companies in abu dhabi, digital marketing, web design, seo company abu dhabi, web development companies in abu dhabi, web design company abu dhabi, digital agency abu dubai, creative agency dubai, motion graphics, social media strategy, UAE, icon, mahmoud, sayed, mahmoud sayed, brand experience, media, alsayegh media, start, business, leading, conversion">
12 mentions of abu dhabi - that raises the spam flag to the top of the pole.
And there are a whole load of services in that list that don't appear anywhere on the site.
So before you even get to the content google is already very suspicious.
Your opening statement is:
"I’m an independent graphic designer specializing in brand identity and Web design. Whether you’re part of a large multi-national, small, independent venture, and you’d like to collaborate on the Design, or Redesign of your visual Branding, I’ll be delighted to hear from you."
But the description said:
"Branding Consultation, UI/UX Design, and Digital Marketing"
The two don't line up at all.
And so on down the page. Google will expect to see evidence of all the things you say you do.
Interestingly when I checked the site yesterday none of the projects linked to anything. But they do today....
Looking at some of this pages there is very little of value.
For example:
http://www.mahmoudsayed.com/brand-identity-mena.html
This is the totality of the indexable content:
"MENA Data Platform Corporate Identity
ClientMENA Data | Egypt
DateMay 2018
SkillsPhotoshop, illustrator, UX, UI
Description Mena Data Platform" works towards creating high-quality, high-impact, data-driven research from within Egypt and beyond. The center produces its own research as well as coordinates various research projects from around the MENA region, in the fields of renewable energy, transportation, urban planning, health, gender, education, agriculture and data skills."
Google doesn't care about MENA. Google is looking for the words that describe the project. You do have alt text on the images but "Main Logo" is pointless.
That's just a very brief overview of some of the basic SEO features you need to fix.