Lars, these looks great, especially the images with the vine (?), the twisted trunk and the trunk with the incused patterns of leaves.
Could you identify the wood in the first image? Would they be beech trees?
Thanks Akira! - in English I think they are called Honeysuckles, those that twines around the trees - latin hints: Lonicera, Caprifoliaceae. I'm pretty sure it's a larva/beetle that creates those leaf patterns in the wood - very nice work
Yes, it is Beech in the first image.