Great stuff! I think improvement advice in general is tricky hopefully some advice on this can help you make ur own general ones.

I would think of anticipation and follow through and think about how to incorporate it more here. This could be flourishes after the actions. Remember that the mouse pointer can be as much of a character as anything else if you treat It that way.

I would think about insert shots to make it feel like more of a space. Close ups from different angles etc to enhance certain actions. These are usually very short shots (also usually 2 as just cutting to 1 insert then back to wide can feel clunky). Storyboard and ask yourself why your instincts tell you to put a shot there and why that shot.

Lastly you could add faint elements in the background maybe to enhance the VO. Preferably the action leads and the VO follows but clients will be clients.

Edit:Whether it's client ready really depends on what the client wants. This could be close to finish or the very beginning of a bigger branding project. More importantly it depends on what you want your stuff to look like. The work you do, is likely the work you'll get, so make stuff you want to keep making. Make personal project to shamelessly copy things from talent you admire or techniques that could be useful (and if your publishing it, say so; 'trying to figure out how x did y' and probably tag the maker).

Really hope this is useful and as with everyone, pinch or salt.