I tested all kinds of variations and in the end found out that in this case
the white lines mainly were caused by the usage of the layer blending mode "multiply" (set to 40%):

Thanks for your replies. @jahnocil: For my imported bitmap images I always use 2 - 4 times higher resolutions and import them as cropped pngs. But the white line problem is not caused by pngs. The hands and their parts are totally made as Anime vectors and I guess the reason for the bug is a masking...

Would like to see it, too, but he link doesn't work anymore...

To complete my Schiller Series here are 3 more Anime Studio Animations I did. They are all made as 20 second clips for a 10 minutes documentary about Friedrich Schiller's life. Z8Cw8t3D_Vg The first one is showing Schiller in a detention room reading Goethe's "Werther". As my clients wishe...

Thank you all for your nice comments, great tipps and suggestions! And yes, of course a pose more at the beginning (@Iwaxana) and also at the end (@aleXean) surely would improve the animation. I only did the panning of the camera because I had to focus on the breaking pieces of the statue which othe...

Very funny and entertaining - I think that's an excellent cartoon animation!

This is the third animation I did in Anime Studio Pro - and after having struggled with all kind of beginners problems it's the first I'm quite happy with. It shows angry Friedrich Schiller, throwing a book at a nobleman's statue and is made as part of a "German Poets" Animation Series for...

Oh, thank you so much for this explanation! As I struggled a lot with Animes colouring concept, I had a lot of tries and errors with the line colours and gradients of these shapes. So I'm sure you're right and that's exactly what happened. I'm glad you helped me to understand this. And btw: Gulliver...

I'm a beginner with Anime Studio Pro. For the last 3 weeks I learned a lot with the help of this forum and by studying nearly all the youtube tutorials I could find. But although I managed to understand the "thinking" of the program and and to use the general concepts effectively, I still ...