You might think that you could easily differentiate between the ugly and the beautiful, but where does one really draw the line? 

Are there any rules to looking good?

What actually are the rules for aesthetics? 

(Note: Some of the following are researched theories)

It is agreed that certain colour combinations bring attention to the eye-these can be monochromatic combinations like various consecutive shades of blue (tip for photos at the beach) or a splash of lime green and earthy browns(could definitely brighten up snaps of nature).

The reason for such specific combinations is because we have abstract judements of each colour as signifying a particular trait or emotion, i.e. blue can be seen as trustworthy or sad depending on its shade. 

However, despite our remarkable ability of abstract thought, our perception of beauty is often geometricalObjects with designs with of accurate measurements and ratios are more likely to have aesthetic- especially if it has the more minimal or intricate professional look rather than the homemade cluttered look (no offense to homemade items-I think they're adorable.)

The reason for such judgement is because such minimal objects with designs suggest usefulness and precious value. This is why gadgets, whose design is very minimal or intricate yet accurately measured out and proportioned, look so enticing. 

What do I mean by accurate proportions, I hear you ask? Parallel lines, equal spacing and no obvious crookedness in general! (unless it emotionally signifies something which is relevant to the photo or art piece, etc).

If all of that mentioned above is combined with the correct colour combinations (Google will help with that), you will almost be guranteed with a perfect aesthetic.