Vector design is perhaps one of the most amazing design systems, especially for its perfect finishes, when the designer against technique, of course.
En this post, shows 25 examples of great work with gradient meshes and great lighting effects. You can also see good and simple compositions of elements traditionally used in vector design and on the other hand composition is much more complex of abstract elements that seem to have been "dusted" without apparent meaning.
I hope they serve you as an expiration to do good work.
Link | 25 good examples of vector works