Just as an example (there are several) the second down of the cow – belongs to an author on Flickr http://postimg.org/image/4usyzv70r/ as you can see “All rights reserved” i.e. not free for use .
I am not saying its the case with all of them but in less than 15 minutes just by clicking to authors links I found 5 that should not be described as do what you want with them. It is a nice site but there was a thread about it in the past that flagged a few of the images.
In PSD, HTML or WP? Typography needs work and footer looks a bit empty, obviously depends what other pages look like
Be cautious with some of these sites especially “unsplash” I can see at least a few images straight away which are definitely NOT free commercial use
1) Depends in the name in question
2) review time can take anything from a few hours to several days depending on loads of factors like number of other files in the queue, if the reviewer needs a second opinion, the complexity of the file, any feedback the reviewer chooses to offer, holiday periods and so on
You will need a domain and hosting. There are free ones but you will regret it in terms of speed of your demo. Premium ones even with godaddy, blue or hostgator are not expensive
The demo needs to be hosted by you, yes
This is just for fun or personal use or is this to be sold on here?
For here with respect it is a long way off. Crazy number of validation issues, alignment and typography is way off and the page sections feel incomplete.
You would need to start by reviewing basic design fundamentals
You MUST make the code validate. Many of the other files in this category offer a lot more with extra info sections, contact forms, newsletter sign ups, social icons and so on
The idea to support a theme without willing to do that is bad. Even more bad to not support it.
If it is ready to go and has a unique style and loads of features why not just hire support staff?
I might know someone who would potentially be interested but it would really depend on what is left to do and having a proper look at it. Thanks
If it has been done somewhere before there is a good chance that someone here will be able to tell you.
PSD first can help BUT you still have to get the coding right and execute it right into a theme.
You can ask for community opinion as you go and as long as you conform to best practice you should be ok but at the end of the day selling in a market like this takes investment and commitment in time and effort. Even the best here had to start somewhere.