Research and planning SLR shots

This is the first shot I took with the SRL camera of leaves on the floor, the first picture is without flash and the second one is with flash. I think the picture with the flash is clearer and better that the one without flash however, there isn't that much difference because I took the shot outside in the natural light.

This is the second shot I took with two people inside the college building. The first picture was taken without flash and the second picture with flash on but you can't really tell the difference because both the pictures are pretty much the same with and without flash.

Even though, with this shot of only one person in the picture, you can tell the difference between the two with and without pictures. When I took this picture I changed the setting of the camera to people. The first picture was with the flash on and the second one was without and clearly the first picture is a lot clearer and better than the second.

This is a shot I took from the college building's point of view from standing on the stairs. When I took this shot I changed the settings of the camera to mountain. Also, I had to zoom in using the front of the camera to capture the furthest mountains. The first shot was with the flash on and the second one was without the flash and I think the first picture is a bit more clearer than the second therefore, it would be better to take pictures with the flash on.

When I took this shot I used the focus on the first  so that it only focuses on the leaves and blurs the background and no focus on the second one. I think the first picture is better than the second because of the use of focus therefore, when I take a close up of an object I should use the focus to make it stand out.

I also took a picture of the college building with and without the flash. The first one is with a flash and the second one without a flash but there isn't any difference in the two pictures.

I did the same with this picture and you can't still tell the difference. I think this is because it outside the building and it won't make any difference with and without the flash outside because the natural light would be enough.