Here is the authors support forums – they will be able to provide theme specific advice http://thunderthemes.net/forums/?envato_item_id=7431822
I agree with the comments above especially the spacing.
I would add:
Some of the typography (especially the headings) font choice etc are not very clear
The bland blue background used in buttons/end of timeline etc looks weak
The biggest issue is that there is nothing unique to the design that is not already available in hundreds of other files here. It needs to feel more polished, premium and add something to make it differentiate from the rest
The item says that there is one click demo content import – I take it you tried this?
Have you checked the documentation for the file?
It looks like you have not yet assigned the menu to the correct location?
Other than that menu position and the images the rest looks pretty much as it should be.
Probably your best bet is ask the author here: http://support.umbrella.al/?envato_item_id=6307436