0. I really like your background.

1. I think all your icons should have the same color shade. I thought the + sign was something special at first glance(functionally).

2. The layout could be closer to how the page is traversed visually. to view the benefits,i have to look at all four corners first. a sample ex:

< all your icons in one line with names below>

< pitch text>

<signup/call to action>

3. I agree with dwynings that the text is hard to read due to shadow/font choice

4. Don't know which call to action is better: build a library or connect with artists. having both dilutes the value proposition. Maybe some A/B testing would be in order.