Please critique my client's website mockup solution

[Omer Sipra]

I have designed the mockup of my client's website namely Islamic Uloom. I want some feedback. The purpose of this site is to portray Islamic knowledge through modern techniques like Natural Language Processing. I have re designed the site. Here is the mockup

 

[Omer Sipra]

Here is the Tablet and Mobile version

 

[Omer Sipra]

Here are the images of the original developed by my client

 

[Omer Sipra]

I have noticed that because of no border it's difficult to determine the dimensions of these images so I am reposting them with border.

 

[Omer Sipra]