Know-How Exchange : E-Marketing

Hi everyone. Does including too many links and images in a single email affect its deliverability? Would reducing these elements help move our emails from the "Promotions" inbox to the "Primary" inbox?

If so, how many links are too many?
What's the maximum number of images we should use?

Does it matter if the link that's repeating (a registration link) is used three or four times throughout the copy, as well as in the buttons as CTAs?

Thanks in advance for your help!