支援者限定になりますが、pixivFANBOXにて高解像度版とpsdデータを載せてありますので興味がある方は御覧ください。
→https://www.fanbox.cc/@pyumaisshi/posts/1020114

It'll be limited to supporters, but I have a high resolution version and psd data over on pixivFANBOX, so for those interested, have a look.
→https://www.fanbox.cc/@pyumaisshi/posts/1020114