When you open Spokt here is what you will see above do what it says

When you put your info in click Browse

When you click browse a box (file) will open like the one above now that might not be the file where your pic is at I always
put the file I am going yo use on my desktop and it is easy
to find if that is where you have yours look to the left in
the box and click on desktop and then find your file
and click on it and it will open and find your picture and click on it.

When you find your picture and click on it it will send a code in the box where I have circled, Now you are ready to upload your picture Click Add photo where I got the arrow.

And if you did everything right your photo will be on Spokt If I can help let me know, Here is a tip resize photos to 450 wide and 500 height.