Everything I could have recommended was said above. In my opinion two weeks holidays lead to a no brainer combo Bali+Komodo.
I would not recommend January : it can be a hit or miss in Bali, you may get a lot of rain even on the dryer & best diving north eastern part (Tulamben) with rivers running into the sea, thus decreasing visibility but also the smallest critter life in the shallows... whereas it's the season for southern Komodo but not so much for north/central, hence you'd be going with southern LoB options and expecting rain in Labuan Bajo.
On the other hand august is the highest of the peak season in Bali, expect a lot of french, german and italian tourists. You'll need to book ahead, like others said it's also season for MolaMola. Komodo will be limited to north/central only but that will be fine for a first trip.
In the ideal world, October-November would be the best season to travel.