I need a polished, professional-looking email signature turned around within the next 6 hours. The signature must: • Reflect my existing company branding in colour, typography, and overall look • Display my name, job title, full contact information, and the company logo clearly • Render perfectly in Outlook, Gmail, Apple Mail, and major webmail clients (desktop and mobile) • Be delivered as a copy-and-paste HTML snippet with all images embedded or linked via HTTPS, plus a static PNG fallback Please include a quick mockup for approval, then supply the final, minified HTML along with any image assets and a short installation guide. Cross-client testing and clean, commented code will be key to winning this job.