A not bad picture imo, but I do feel that the camera limits the picture a little.

Forgive me for editing your picture but the picture looks quite flat and lack of saturation or punch. I boosted the saturation and did a horizontal wide crop to remove empty spaces on the top and bottom part, hopefully it looks better.

wut

Also the picture might looks better when taken with a better camera to provide wider dynamic range ( the couples and foreground are quite dark as they are backlighting to pulling up the shadow to reveal more details about them might result better looking image).

Just my opinions

opps sorry, something wrong with flickr it seems.

It's not a must, but always no harm to learn

Editing/ PostProcessing can improve your picture most of the time, a simple contrast/tone changing will result a very different photograph.

You can start learning easily at home since there's so many tutorials out there that covers a lot of information, you can use programs that come with your camera (for example DPP for Canon, LR for Samsung). If you don't have any of them , maybe you can download Lightroom for trial (1 month) then decide to purchase the program or not after the trial expires.

Hope this helps