Thanks! Which ones do you mean, maybe I can fix it...
That's a fun idea, I'll make a form, I'll make some team line-ups, if people would enjoy that.
So if you want to have a team picture with the fakes, just for fun, I don't expect people to do much with it, just fill it in (leaving blanks is ok), and I'll try to make a team line-up for ya! If it's reasonable to be a early game, or mid game I'll put it in there, and if not, than I'll try to put you in a end game battle arena. :)
Im gonna name the a couple of them so you can hopefully see the pattern:
Swiftog - This one stands out immediately it just looks awkward and flat to me. The arms and legs don't suit the shape of the body and the long body makes it look bland. The face is...too standard I guess nothing memorable in the design besides the spikes but they're placed poorly (because of the shape of the body).
Mattle - The face just looks wrong, not pokemon like. And it's merely a couple of rounded up squares that form an awkward shape, again. The horns are inverted on purpose but I think it would look better with standard horns.
Kamaisickle - it's Swiftog all over again. I would look into the shape of the head and eyes for this one.
Altocuran - Make the wool come from behind of it's neck, it would make the position of the head look more natural.
Puffuin - I don't think it can stand on it's feet with that big of head (beak).
Puffteui - Rounded arms, don't suit it and are not interesting.
Tarmount - The eyes.
You get the point, to sum up, you should look into proportions ask yourself how would that pokemon handle itself in the pokemon world (walk,run,swim..). Would it look out of place? Why?
And it might be hypocritical to say all of the above as most of my fakemon don't even look similar to pokemon in the slightest way, but it's much easier to give criticism on someone else's work than on your own as most of the times you don't see your own mistakes, but that's why we are here to help each other. {:3}
With that said, the majority of your fakemon are good and naming the good things would definitely take me much longer than naming the bad things.
I hope it didn't come off too harsh and I think if you practice the things I mentioned, your fakedex would be even better, and that's the only thing that matters.
Good luck and keep it up! :)