The Gabby jug took me 45h, u guys didn't liked it, I redid the colors and rivets, took me 10h more. Now I realized the stripes are not lined up with the guns... woot 10h more
I think that at least 20-30h is necessary for a new skin, because u need all this work on the panel lines. This, if there is no bug, meaning u don't need to find what the heck is this yellow rectangle in the middle of your wing or why both wings don't have the same size and stuff.
As far as kids and/or newbies posting their work. I'm encouraging it even if it looks like crap. Maybe 1 h is a lot of work for them even if it's nothing for us. But the guy created something and I'm sure he is proud about it. It's our job to encourage him by going foward. I mean by this, kindly telling him that despite their work, it's doesn't look so good, and point them on the "why".
Just my 2Cts.