Increasing views and sales / advices for my work

Hi everyone,
I'm on Pond5 since June 2017 and I've upload 8 tracks since now. I'm really excited to join this community. I worked at my best to produce these tracks for advertisement/cinema stuff but I reached only at maximum 7 views per track and 2 purchases. Do anybody can tell me how can I improve views on my tracks? Do anybody can give me some advices/criticals for my tracks?

This is the link to my profile on Pond5:
https://www.pond5.com/artist/guglielmocamporese#1/2064

Thank you all.

Stuff sounds great! (Especially the 'Happy Ukelele' one, sounds right out of a commercial) I just joined and uploaded some stuff, so I'm trying to learn this as well. Best of luck!

You need more items! my sales started with 70-80 items...

thank you for the answers!

Yeah, the "uke" track is cool. Nice work!