You would be hard pressed to know every ARF available so the question is legitimate and does not indicate ignorance. Some models come as kits and ARF. I have customised (a few gentle taps rather than bashed!) ARFs with great satisfaction but would never claim that I built them. I am about to embark on a build and if it comes out finished any where near as good as a lot of ARFs, I will be rapt. If it flies reasonably well will be satisfying enough.
It worries me that there seems to be a level of arrogance that "if you didn't build it - preferably from scratch - then it doesn't rate".
This sport, like all sports, has "A" grade level down to "F". People start at the bottom and need coaching and encouragement from those at the higher levels. Some will go up a few grades, some wont, and some will exceed their teachers. All should enjoy the sport at whatever level they achieve. No-one should be looked down upon because of what they fly if it is airworthy. If it isn't, then those that know should help as long as the person is willing to listen and learn. Old timers should not lament. ARF brings a wider group of people into the sport. Of those, there will always be some (like me) who want to make that step into building just to see if they can.

Back to the topic, take it as a compliment that your aircraft looks professionally finished.

PS The Sopwith Camel is a marvellous subject for an ARF. It is surprising that there is not one already on the market given Biggles, Snoopy etc. It will be tricky to fly if anything like the real thing so would be aimed at advanced modellers I guess.