Question about naming product image files names

Hi there,

I'm working on an e-commerce shop and have a general question...

Most of the products contain between 8-10 images (various angles and looks). Would it be best to AVOID naming the images with kephrases due to potentially being labeled as spammy? (ie. brand-name-model-side-view.jpg, brand-name-model-back-view.jpg, brand-name-model-front-view.jpg, brand-name-model-side-view-2.jpg)?? Or would it be best to leave phrases out entirely (use model/SKU numbers etc.)?

Any suggestions would be greatly appreciated. Thanks