Hi @Anonymous,
Welcome to the Fusion 360 Community!
What do you need help with specifically?
Thanks,

Hello @Anonymous,
thanks for posting. You mentioned in the private message that you need help with the following: "sloping flat surfaces, inserting premade 3d drawings and adding textures". Here are some useful links.
To apply a draft angle to a specified planar face, the Modify -> Draft feature in the model work space can be used. Further instructions can be found here: Apply draft to a solid body
This knowledge article: How to import or open a file in Autodesk Fusion 360 describes how to import a file, including how to insert:
- a mesh body
- a DXF file
- a SVG file.
An instruction on how to apply appearances to components, bodies and faces can be found here: Apply appearances in your design.
Let me know if that helps. If you need any further assistance, please describe in a few words what the issues you are experiencing are. Thanks!
Best regards,