this diagram shows where bullets will go,
depending on what kind of hand 'hold' you are using while shooting. Note that this diagram is for right-handed shooters; left-handed shooters usually have a mirror image of it.
For example, a very common error of beginning shooters is to "tighten the grip while squeezing the trigger." That results in the shot being pulled to the right and a bit lower--the 4 o'clock position. Since your picture would show that kind of pattern IF you had hung the target right-side up while shooting, that is why I asked you if you had posted the picture upside-down.
After a person has shot a bit, and started to relax and not concentrate too much, they start developing 'habits'--he will tend to shoot the same way. There are good habits and bad habits, and a shooter has to learn to develop the good ones and NOT do the bad ones.
When we--the other posters--looked at your target and saw most of the shots to the left, but scattered from the top to the bottom, we could not see a 'pattern' emerge--that is, you are not consistently doing the same thing yet.
Personally, I was willing to guess that you may be jerking the trigger and / or letting your wrist relax (or tighten up) at the moment of the shot--see the diagram. But, with so many shots, it is too hard to tell accurately what is happening.
This is why we have suggested to move the target closer, and to take less shots at a target--so we can maybe see a pattern emerge. Then we can tell you what steps to try to get more accurate--and we can probably tell if the sights are off, or if you just need to get more familiar with shooting or develop better habits.
Jim H.