The most professional designs make space. Your business will look more trustworthy and high-end if you take away some elements and leave blank breathing space around everything.
Will you be using a busy photo in your latest marketing collateral design? If so, then cull the amount of text needed to use over it.
Need to say a lot? Then use tidy columns with wide gutters between. And choose a photo to compliment it which is easy on the eye.
Our eyes want a breath from information in order for our brains to process that information properly and then buy from you.