South facing plot according to Vastu Shashtra is ggod if the main door is as given below :
For this the southern side of flat divided in eight parts. The fifth sixth parts are most suitable for main entrance. If it is not possible than two photo of lord Ganesh should be fix above the main door both inside and outside. Two shape of swastika should be stick on both side of door. Your pooja room , kitchen etc direction are not indicate. Pooja room should be at North East and kitchen should be South East . The common wall of pooja room and kitchen is good but washroom is not suitable. It should be changed if is it possible.