I don't see anything wrong and I've looked three times. You say you are a beginner, so if it is the center points bothering you, go ahead and put a button there and never mention it again. Those points can be tricky for all quilters. Do not give it to the dogs! Put it on the wall be proud that you have completed it. This was a lesson for you and now you know what to be aware of next time. Onward! You did a great job.