Here's another perspective.

A single mirror could be fine here - and is a more functional choice. Consider a handworked piece to compliment the candlesticks on top. If you prefer the look of more pieces ( your wording suggests as much), a smaller mirror mixed in with other artwork on the wall would look well w your father's beautiful handiwork.

Thank you. When you say "handworked" what are you thinking of?

Hammered metal, thrown pottery, carved wood.

Also, how big should the mirror be?

I suggest three pictures, and a low bowl. Beautiful sideboard. Well done that dad.

https://www.etsy.com/listing/38827436/set-of-three-seasons-paintings-spring

Finding the correct weight and balance can be tricky. You need something else next to the sideboard to do that. It's to small to center. Adding a plant..is kind of boring. I suggest you find something such as a light weight chair or even a coat tree. Then find art that will balance with the second piece and that great cabinet:) From there use the colors in your art to create the surface.

no

Moving the console to the center would look better for the top stay withing the scale of the console nothing that goes over the sides on this one hatetoshop give you the right measurements for it ,you either go with a mirror or art ,the choice is yours.

Thanks everyone! I cannot put anything to the left or "center" it as the front door would hit it when opened--don't want to dent it! The examples are wonderful and, hatetoshop & Genevieve, yours do help with the proportions. Here is a pic of the door situation...

To help with the table being off centred, just decorate the wall and items on top to fool the eye and create balance. Even adding a shelf to the left is an idea to create more balance. Will make for a personal and unique entry and higlight your table.
[houzz=]

Oh!!!!! I don't think that flipping would work either , the other side doesn't have enough wall for the console , moving it more to the left will not work because the door will swing open and it the corner of it , so what remains is to work with it the way that it is or replace it with a smaller one that wont be in the way .

What do you think of this style? It 35" W 36"H which keeps it to the inside of sideboard and almost to lintel of office doorway (to right). Sideboard is 38"W and wall (to office lintel is 44"H.

http://demandware.edgesuite.net/sits_pod20/dw/image/v2/AAID_PRD/on/demandware.static/Sites-pier1_us-Site/Sites-pier1_master/default/v1412954093165/images/2802622/2802622_1.jpg?sw=1500&sh=1500

Maureen, that is a very creative idea. If only I had the confidence/know-how to put it all together. Oh Genevieve! Please please don't tell me I need to change out the piece! :0 It is so nice and I really want to show it off. I do believe, with the right accents, it would look fab...

It really won't be that hard. See location of floating shelve in above picture and add a black framed picture on it or a small mirror. Over the table, add a few more black framed pictures in a various sizes and stagger them. Or an easier way is to run a floating shelf right across and then you can easily experiment with placement. Picture below only gives an idea...larger/higher item on left to balance the wall and smaller above your table. Layer/stagger smaller items. Ask a creative friend to help and bring home a few items so you can experiment with sizes, etc. and return things you don't like.
[houzz= http://www.houzz.com/photos/12044970/Printworks-contemporary-powder-room-other-metro]

You can put something on the left portion of the wall to balance like art work or a tall mirror. A tall mirror would bounce the light into the entry too.

These things are definitely great ideas. I will fiddle around with it. Thank you!

You can do it lucinda:) as long that you or anyone else hits the corner when you open the door you are good to go and just focus on the wall part. show us the after when you are done . If you like you could add a nice wallpaper behind it too.

Center more on wall. Add a floor plant under it. And a tall but 1/2 the size of table wide, picture. Or a sunburst mirror unique. TJMax carries.

On top check TJMax for unique it's just 3. Add color.

Nancy, could u please clarify what u mean by "unique it's just 3..." Something I can find online at TJ Maxx? Thanks!

Thanks for the confidence boost, Genevieve! Love the wallpaper, but the wall goes up to 2nd floor. Also thanks Maureen, for extra tips. I will see what I can do.