We went on our honeymoon in July and did Seychelles first for 5 nights and then Tanzania for 11 nights (3 different camps + 1 night at Arusha for transfer).
Really loved this combination. Originally, we were going to do South Africa + Mozambique / Mauritius, but did not want to go to SA in their winter when it would be cooler. The weather in Tanzania was great.
I cannot comment on your specific game lodges in Tanzania, but we loved the camps we were at. One thing to note that we did not know about beforehand is to make sure at least one of the camps you go to is on a private reserve so you have more flexibility with respect to your game drives.