Hey! Thanks for your comment and congrats on making your first sale on Shutterstock. It's exciting isn't it?! Regarding visibility, don't waste your time trying to promote your portfolio. Shutterstock are only happy for contributors to bring customers to the site via backlinks, but the chances of you making sales this way are very slim. 99% of customers will find your photos by searching on Shutterstock itself, so your efforts are better spent on finding what to shoot, and using great keywords. The best advice I can give you is to combine what I wrote above with good lighting, good models, and contemporary themes (think solar panels, fidget spinners, civil unrest, tech addiction, etc)

Following you back.