With respect this is a long way off the mark.
the construction is not there- needs more pages, functionality, attention to detail
typography, hierarchy and spacing are not great
no proper footer
needs multiple portfolio/showcase/project layouts and options
project page sin particular need a lot of work as videos are oversized and content in too small and unstructured e.g. why not have client:, project: date: etc.
requires more premium value features
In regard to you rother thread How to Pass the Html Review Process?
" would like to buy a good template and reverse engineer it so I could understand the standard. Can anyone recommend me such a template?"
This is NOT a good idea if the above is where you are at currently. I guarantee you will (intentionally or not) find yourself copying and over-inspiring from the other item.
Also, if you don’t understand why successful items are created like they are and the design principles behind then them you will never develop and are likely to struggle to support your items and so on.
The best thing you can do is to work on refining your knowledge and skills ‘generally’ and then apply these to creating stock items