Is there anything missing from this home made compost?

Hi guys,
Last year I made compost, which was successful and I spread it as a mulch today over the borders and I have now started another batch. The previous batch was just really chuck everything in and see what happens, but this year I want to make sure I get a well balanced compost. So could you please let me know if there is anything else I need to add to the new batch that isn't already on the following list? Also could you tell me if everything I have in there now sounds good or is there too much of one thing and not the other? Thanks :0)
So there is roughly around 70% Sawdust and straw with rabbit and guinea pig manure.
Around 20% grass clippings (mixed in well to avoid it going soggy).
And around 10% waste veg including...
Cabbage
Carrots
Potato peelings
Bananna skins
Used tea bags
Egg shells
Posts
Not keen on adding cardboard....shredded paper sometimes though but not newspapers.
why Verdun?
Roy