Responsive Landing Page using CSS Grid and Flexbox

// I read somewhere it's OK to use an anchor element as a parent to multiple child elements. Was wondering if this is accepted practice?

// I have chosen to not use css background images but only img elements [also picture/ figure/ etc]. I have used 'aria-hidden=true' to hide decorative imagery for inclusivity. I fear I may been a little over-zealous here. Any thoughts?

// I have converted supplied imagery with web versions - is this permitted within the brief?