Customise Wordpress theme and sub them to look similar in a new child theme

General information for the website: Customise my wordpress theme
Kind of development: Customization of existing website
Description of requirements/features: I need my main theme customised, and my sub theme to look similar

Idea of the design changes

Domain nexuslocal.co.uk

The original theme
https://dl.dropboxusercontent.com/u/87910408/02_Frontpage2.jpg
http://cdn.appthemes.com/wp-content/uploads/2010/05/cp-home-change1.jpg


this is whats already been done
http://nexuslocal.co.uk/
http://nexuslocal.co.uk/classifieds/
I have a idea of what im looking for.

Mockups of what I want it to look like

- use custom icons at the top.
- change the slider to Revolution Slider I have plugin.

- maybe use a custom menu, im not sure on this.

- keep the login widget at the top
- Choose colours that work well and clear to see.
Extra services needed: Customization
Extra notes: