The file is intended to be a gallery of 3D artwork by the creator Echiee. However, because it is a third-party download, its safety depends entirely on the where you acquired it.
If the file size is unusually small (under 1MB) for a "picture" collection, or if it contains .exe , .bat , or .js files inside, do not run those files as they are likely malicious. Summary EchieeSFM_pictures.zip
It is highly recommended to run the file through a multi-engine scanner like VirusTotal before extracting it. This will check the file against dozens of antivirus databases to ensure it is clean. The file is intended to be a gallery