Love that clock... That's awesome. Showers look great
Ohhh Hachy... I feel for you! I hate mice... Once you get rid of your "visitor" I can highly recommend Weepa's (weep hole guards) you just get them from Bunnings, they click into your weepholes in the brick work (they often get into the cavities this way) block them and still allow ventilation.
Steel wool & expanda foam anywhere else.
Also, moth balls/naphthalene flakes work a treat to deter them from coming in... We always have a few sachets in the roof and our shed is full of moth balls. I also chuck peppermint oil soaked cotton balls around too - they hate the smell.
I like preventing as much as I can! Horrid little critters