GASP! OMG!
I had never seen such an impressive ammount of detail in a retexturing project!
There are fine touches everywhere, from the grass on the ground to the vines up the wall, going through the coloured glass windows and the clock on the tower.
There is only one small thing that I should note down, and it is the wall on the cathedral. Though it does look good when looked from far away because it gives an old feeling, when looked up close you realize it's impossible for a wall to have that much grass in between the stones (
http://www.emutalk.net/attachments/...os-hi-res-banjo-kazooie-banjo-kazooie-32.jpg).
Maybe you should try a different thing, but it's not really that much of an important thing.
And for last, I would suggest retexturing the pictures on the wall of the inside of the house (grunty's and the pot's). You could just replace them with pictures of them taken at any part of the game (in the credits at the end of the game you get to see some good takes of every character in the game, you could easily take a picture of them and place them on the texture for the hanging picture on the wall).
But otherwise this project is going more than great! I wouldn't expect you to retexture the sky because it would take a lot of time and it looks great as it is, but the most difficult thing to retexture will be the characters faces when they appear next to the text they are saying, as they are animated with many frames. Not that I'm asking you to retexture them, but it would be a nice touch if at least one or two character's faces were revamped, like grunty's and banjo+kazooie's face next to the life icons. Still, that's only a suggestion.
Keep up the good job! I'm hoping to see this texture-pack complete!