Aliciarohail, I have split off your post into its own topic because it really was not relevant to the topic you posted under.
What you are feeding is a good base for a natural diet, but you may want to start supplementing with fresh foods as well. See the Safe Plants for Rabbits sticky for ideas about what plants you can feed. Limiting the rabbits to just a few foods, as you are doing, may over time result in deficiencies of certain nutrients. Feeding a wider variety can help to make sure this does not become an issue.
In addition, adding fresh foods (which most rabbits prefer to both hay and grain) can help to prevent obesity. Rabbits can look perfectly fine, but still store large amounts of fat in their body cavities, leading to decreased productivity. Such foods as grain and sunflower seeds, while valuable in small amounts, are the usual causes of internal fat accumulation.
Edited to add:
Please remember to make all changes to rabbit diets slowly so that their gut flora has a chance to adjust to the new foods. Sudden changes can cause problems and may even be fatal.