Your enthusiasm is commendable but your photo presentation skills need some work. When presenting a coin for information, take the photo at 90 degrees to the coin lying on a white or black background...show both sides...if you have photo software, crop the photo some...post full size. Makes it easier for us to respond. BTW, that is a German eagle. What are you using for photos?
No problem with that, the advice I have seen here is to place the coin on a flat surface (perhaps a piece of paper), place a glass, box or something near to set the phone on so it doesn't move, take the pic. Yours don't look bad, it is just usually better to take them straight on. What's the other side of the German coin?
Not bad, you're getting there. Orient the coin correctly and post full size and then the only finishing touch would be to crop some of the background.