Magento - Edit Category header

General information for the website: We're selling food
Description of requirements/features: Dear Dev,

Don't send me a quote if you don't read the brief till the end. Don't send me a quote higher than the budget available.
My website is www.delishop.co.th
My need is very simple, I want to set up this kind of header: http://prntscr.com/f94bcw
The 3 tiles must be displayed responsively !
This header must be shown for this category: http://delishop.co.th/home/groceries/delicatessen-meat/ and also the 3 subcategories

_ The tile Meat must redirect to: http://delishop.co.th/home/groceries/delicatessen-meat/meat
Tile can be download: http://delishop.co.th/home/media/wysiwyg/MD_M_1.jpg

_ The Tile Sausage must redirect to: http://delishop.co.th/home/groceries/delicatessen-meat/sausages
The tile can be download: http://delishop.co.th/home/media/wysiwyg/MD_S_1.jpg

_ The Tile Cold Cut must redirect to: http://delishop.co.th/home/groceries/delicatessen-meat/cold-cut
The tile can be downloaded: http://delishop.co.th/home/media/wysiwyg/MD_C_1.jpg

I'll reuse this header template for other categories - So Dev must show me where the code has been put in order to allow me to re use it for other categories
Extra notes: