Re: So when planning a menu what is important to consider?
^ PS has a good point. Consider another veggie dish for the main course. You can make sindhi biryani, lamb palak and perhaps cholay (chick peas) or eggplant or a mixed vegetable dish?
And in my opinion, consider moving the chicken tikka to the main course, because it's a more filling and heavier dish....commonly served for meals (lunch or dinner). If you don't want to do that....then instead of making chicken tikka for starter dish...do smaller pieces of chicken such as chicken wings. Chicken wings marinated in masala will be a better pick for a starter course because they're smaller in size. Otherwise people will get so full from the starter course that they won't have room for the main course.
Overall, you have a great menu. Conratulations on your anniversary and happy b-day in advance. Best wishes with the cooking :)