Animation looks technically pretty good. Plenty to learn about aesthetics/composition/lighting, which is also good, it takes time.
As others have noted, especially James - speed is very important for professional work. In architecture school I could spend two weeks on a huge panoramic rendering. Today I can do about the same work in two days, or 3/4 as good in one day. This is very important for the firm, but was never stressed at school.
Remember that dozens of other professionals on many fields are working simultaneously, and the project only moves as fast as the slowest person. The artists (at least here) are never expected to be the slower ones.
Newly graduated artists too often worry about details and forget about streamlining. Making sure to learn your program well and the most important shortcuts, cutting down rendering time, not using unnecessarily high resolutions, getting good texture/item libraries at your fingertips, anything that will help you mass produce. Always ask yourself how you could spend some time now that will save you more time later. The client usually doesn't care whether that palm tree is perfect, that reflection right or this texture has high enough resolution - he just wants the result to look flashy/stunning/authentic/whatever his taste and for the cost to be 5,000 USD rather than 10,000 USD.