The best way to visualize what pictures taken with each lens look like is to convert your lens' focal length to the equivalent focal length on a full frame body in terms of the same angle of view. Then look at images that were taken with a camera/lens combination with the same angle of view. In the case of the 4/3" sensor on your Olympus EP-3, the conversion factor would be 2.0X. This means your 14-42 lens will yield a field of view (FoV) of approximately 28-84mm on a 35mm camera. This is squarely in what is known as normal zoom territory. Typical lenses for that purpose on a full frame camera are currently available in focal lengths of 24-70mm, 24-85, 28-75mm, and even 24-105mm. Your 40-150mm lens will yield an equivalent FoV of 80-300mm which is right in line with the traditional telephoto zoom range. Many older telephoto zooms were 80-300mm. Most newer ones are available in 70-300mm focal length. Many DSLRs have APS-C sized sensors. For this type of camera the normal zoom range is about 17-50mm and the telephoto zoom range is about 50-200. Normal zoom lenses are offered in 18-55mm, 17-50mm, 17-55mm, and 17-85mm. There are a wide range of telephoto zooms available for APS-C cameras that range from 50-150mm, 55-200mm, 55-250mm, to even 55-300mm. The traditional full frame focal lengths are also often used on APS-C cameras.
Now that you know that your lenses are in the normal zoom and telephoto zoom ranges, you can look at the information from other photos to see what type of lens they were made with. Go to somewhere like http://www.flickr.com/ and enter a full frame camera model (such as Nikon D600, Canon 5D, Canon 1D, etc.) and 24-70 (normal) or 70-300 (telephoto) into the search box. The search will show you images taken with the combination you have entered. For APS-C bodies like the Nikon D3100, D5100, D5200, D7000 or Canon 7D, 60D, Rebel 4Ti, and so one, use 17-50 or 18-55 for the normal zoom and 55-250 for the telephoto zoom. These images will show you what pictures shot using those angles of view will look like. The first few pages will have many images of the camera lens combo, but succeeding pages will show more images taken with the combination. Notice that page 6 of the results for Canon 5D 24-70 gives different results than page 6 of the results for Canon 5D mark II 24-70.
Of course, you could always search for images taken with an Olympus EP-3 (or EP-2, EP-1) and 14-42mm or 40-150mm. Unfortunately, there aren't very many images with the 40-150mm lens mounted on Olympus bodies. Searching for the EP-1 and 14-42mm yields many more results than the newer EP-3 and 14-42mm lens.