Capturing good photos is an educated process
Most good photos are not the result of chance a lucky moment captured. In this case, I would say it is. I walk my two dogs here on a regular basis so was at some stage bound to get lucky.
Trying to grab a camera and go looking for a good shot can be frustrating and depending on photoshop to enhance the photo can help, but when overdone can make the photo seem surreal or almost pictorial. So it’s better to take an educated process to the event.
If you do take time to learn the process you will capture good photos with slight touch ups in photoshop and your time and the end result will be better.
Start with black and white photography
Colour photography is fantastic and one could spend years constantly improving one’s ability. My advice for what its worth would start with black and white it is easier to take good photos. The reason I say this is your concern is focused mainly on highlights, shadows, contrast, exposure, and tone. A lot less noise to worry about. Remember your eye predominately sees everything in black and white, some 98% and only 2% processes colour. two tips I would give is to shot in raw format and do not set the camera to black and white. Shooting in jpeg and black and white lessons your options.
So if this is something that interests you go ahead and learn there are many resources out there, learn about exposure and histograms and enjoy the wonderful world of black and white photography which will give you a good base to move on. A great place to start learning is with this youtube video by Lynda.com Exploring black and white photography