That is a very pretty bug, with a very charming caricature of a human face each way! I think it must be a "shield" or "stink" bug, a member of the family Pentatomidae. You don't mention its size, though I would guess it to be 1- to 2-cm long. Some Pentatomid bugs have vivid coloration a bit like that one, though most are a camouflage green or brown.
One way or another, the basis of that pattern is typical of many of the Heteroptera, the suborder of bugs that includes the Pentatomidae; also, spots like those that represent the "eyes" in the caricatures on that bug, commonly are conspicuous on the fore-wings of the Heteroptera, or on the corresponding parts of the young, before their wings grow long enough to cover the back.
Another relevant observation is that such loud colouring is aposematic, meaning "away-signaling". It acts as a "keep-away" warnng that this beast bites or is poisonous or bad-tasting, or hard to catch, or the like. Your bug specimen might bite if caught, but the warning probably is backed up by its bad smell and taste if hurt or frightened. That is why we call them stink bugs.
Such aposematic warnings normally take the form of bright colours, but sometimes there also are vivid or alarming patterns. However, I do not for a moment believe that the fanciful appearance of the human face has much to do with the aposematic function. No enemy of the bug is likely to say to itself: "Whoops! A man! Better leave him alone!"
At the same time, if the bug is largish, the eye-like spots might look threatening as such too. Certainly many aposematic patterns lok eye-like, and many animals avoid eye-threats. But I am sceptical. I think it is just a vivid pattern in vivid colours, and that warns many enemies away anyway. A dimmer enemy might not be clever enough to avoid the pattern immediately, but will recognise the next one it finds after it has tasted the first bug!
Best stick to photographing them without tasting them first!
All the best,
Jon
