The fanart was done days before the trailer came out, and someone else did a fake with that fanart (a fake done using my fanart without my permission)... then, surprisingly, a very similar scene appeared on the trailer (and so in the movie). Simply coincidence... it was too obvious Tagoma could ...
I like the hair Metalwario drew for Goku, Gohan and Vegeta, the rest reminds me of what we call "amerimanga", that is, americans trying to draw manga... just look at Trunks and Goten's faces and Goku's bust, those remind me more of an X-Men comic than a Dragon Ball manga... And what's up with Vegeta ...
That's why everyone loves Trunks. I agree with you.
I think sometimes Raykugen is extremely polite and he has too much respect for the project, so he didn't want to give the links because he is no longer a DBCProject member and he though he wasn't the right one to do it.