I think I will try and answer your question in a different way.
If you can take some shots and display them on your PC screen at the size you want and they look reasonable the chances are that you can print to the same size but some post processing is likely to help even if you work from jpg's.
There is a site which kindly provides completely unretouched shots from many cameras This is the sample images from yours which should give you an idea what the camera can do
http://www.photographyblog.com/revie...sample_images/
There is one wild life shot taken at 470mm. That might indicate that they weren't happy with longer focal lengths or nothing at all but it isn't unusual for zoom lenses to have problems at their long end, I haven't read the review but sometimes on cameras like this especially the longer range zoom ones they comment on how good the image stabilisation is at the longer focal length settings. The 1st answer to that is to try a monopod. Then a tripod.
They also provide a number of raw files from the camera. The ones from this camera are significantly better than other 1/2 in sensor fuji's I have looked at but do need a fair amount of work. Camera jpg's from these types of camera are often heavily processed. It's probably better for beginners to work from those. Post processing can take some time to master and needs the right software. JPG's given that the exposure isn't too far out are easy to tidy up. Sometimes on any camera the exposures wont be correct. There are usually facilities for correcting this - exposure compensation - but it takes some experience with any camera to use it reliably.
For wildlife work on m 4/3 the to 300mm zoom lenses are needed really. That goes to 600mm when measured as your camera measures them but it can be surprising just how close birds need to be to fill the frame even with that focal length. The same site also has sample pictures from these. One wild life shot on the Olympus version and none on the Panasonic one. There is a shot of a bill board though which again can give you some idea - they are larger than many birds.
http://www.photographyblog.com/revie...sample_images/
http://www.photographyblog.com/revie...sample_images/
The shot of the moon should give you some idea how much these lenses magnify. People tend to think it will be massive.
You can click on all of the images on this site to enlarge them to a full sized view and also right click - properties on to see camera settings that aren't given in the thumb nail view. When it's a lens you should see things like saturation=0, sharpness=0 etc. Also on cameras but sometimes certain things can't be turned off on some of them. If the browser window is resized it can give an idea of what results can look like at different sizes.
You probably will see a difference in quality between your camera and m 4/3 but I would still suggest you stick with what you have until you can use it as well as the images suggest. There all sorts of aspects to photography that just relate to how and what situation the camera is used in. One popular complaint when people were rushing out and buying m 4/3 camera was it's hopeless, some areas of the photo come out very dark. They will on all cameras if conditions are not suitable. Another comment related to camera shake and blurred images - they are only as good as the image stabilisation is and past that some sort of support is needed, That aspect sometimes depends on the person using the camera as well as the IS.
Stick with it and learn to use it is the best answer because it can clearly take decent pictures. To give you some idea this is the squirrel jpg shot crudely post processed probably spoiling some areas a little as I didn't keep an eye on the entire image when I did it.. Some noise removal, contrast enhancement, reduction in size and mild sharpening. For ISO 1250 it's not bad really.
John
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