The plan is looking very generous. Nothing to criticize but a little thinking could make a real good plan for egl.
1) The hall could accomodate the dining area as well.
2) A single stair is sufficient enough to fulfill the requirements. depending upon where it is placed.
3) A lounge on the first floor would add the charm to the upper floor and a large balcony may be if possible.
4) Some vegetation in the interior could make it lively.
5) I f a small courtyard if not a hindrance into the central area can make it more inclined towards nature since it would be good for light and ventilation.
There are a lot of other small things possible depending upon the requirements and the structural probability.There doesnt seem to be the column and beam overlay over the plan which would be also helpful in designing.
Geeta Rana