Gradient in top slider doesn’t fit well in flat style that you want to achieve.
“contact us” doesn’t lead to contact form on the bottom of page but on blog page. I don’t like hover effect with bouncing, the one below “about us” headline. Don’t mix too much different hover effects on one page. Make menu sticky to the top, top slider seems that needs more work.
And most important check space and paddings. That is main reason for template rejection.
Portfolio filter doesn’t work.
Bootstrap because it is most popular framework here. If you want to have full ie8 support then go with Bootststrap2. If ie8 is not much important for you go with Bootstrap 3. It has more complex classes that give more possibility to better optimise layout for smaller devices especially tablets. For clients outside Tf version 2 is still the best choice.
I am looking for Joomla and/or Drupal developers who already have Themeforest portfolio for collaboration to convert my html template “Colors”. Theme would be on your Themeforest account.
I am also interested in selling this template’s Joomla or Drupal rights.
If anyone is interested, please contact me from my profile for more details.