First Impression - the most important one: Nothing is new.
Composition: This shot lacks the use of the basic rules of composition, take a look on google at the rule of thirds and see how this can help improve the composition of this shot.
Subject: does it or not ... really self determined in this shot. This doesn't show the entry being made and enterd .. it only shows the clock on the computer.
Technical (Colour and light): The colours is very yellow cast, this will be due to the lighting in the room.
To grow its vote?: Think about how others are going to see the image, this is an inside joke and similar have been done a number of times I don't think any as done well.
Summary: From your portfolio you have some good work, can't wait to see of it in the challenges.
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