For the OP,
The Ruy Lopez is a great opening, especially for beginners. It is highly theoretically and seems to give white the slight ege like in the majority of opening positions for white with 1.e4.
However among this the Ruy Lopez is a very drawish opening, but still in master play people play it for wins still it has more draws than anything else in e4. This is by experience of playing it and statistics as well. But the more you play an opening the better you will get at it, especially if you are just naturally good with it and want to stick with it.
But yeah play the opening and see what results you get, I am sure you won't be dissappointed as long as your learn the theory and gain the understanding and most importantly have fun with it!
This is very interesting, but what is black's objective in his king's moves? Is it to manually castle?