I'm not quite clear on what you are asking.
Do you want opinions on whether you should take this to a model show/competition, or are you asking for us to look for flaws and a harsh criticism?
If it's the show, bring it, why not?
If it's criticism, beware of that, problems can be found on every model and if something is pointed out you'll never be able to unsee it. While that is best in terms of learning or getting better, people are usually hesitant to be too critical so as not to insult anyone.
Say did a wash for the first time and am pretty proud of how it came out, some flaw might be evident, I'd want to know I think, but at the same time, it might dampen my enthusiasm or make me overly concentrate on it. Or maybe I saw it myself and if I answer that way, I might come off as defensive and the poster might fell like they insulted me.
Best advice I can give is take a lot of close up photos of your models under bright lighting, then look at them intently as you would a photo of some master work. You'll start to see surface blemishes, areas where the masking wasn't crisp, maybe some orange peel, a bad seam, etc. It's important to get another view since your brain gets used to seeing something so often, it glosses over stuff. With sculpting, it's important to use a mirror, nothing shows flaws faster than holding something up to a mirror because it's not what you've been staring at for hours.