Your work seems to be of very high quality and we will gladly welcome your contributions. Only issue with this one is, it is not a direct contribution to any existing project. The way you should proceed on Utopian is finding some open source project (they have code and license disclaimer on github) and make something for them (after asking).
or check out our discord and @utopian.tasks posts to see if someone is requesting 3D models. If they do, you are free to contribute.
Now I see this is not a spam, rather misunderstanding. :)
Hey, it was my fault:D I already got answers on Discord want went wrong- ups ...should learn how to read already^^ I already have an ongoing project that might fit, so better luck next time:)
No harn done. No problem. We are looking forward to see your work.