Making a relaxing LEGO tub I'd like to make a few tubs with an ornate gold-trimmed look.  I'd like to get atleast a somewhat curved feel to them, not just the blocky square ones you see on the youtube tutorials.  Here's a few of the pieces I'm considering:

shorts for the bathers

bare chest, or similar for the bathers

inverted arch  for the curved base of the tub
or
double concave brick  and other 33-Degree bricks for the base of the tub
or
Tall inverted arch  for the curved base. (I like this one because it comes in orange which is closer to the pearl gold pieces)

2x2 macaroni
and
macaroni tile to top it off with a nice pearl gold finish.

mirror on the wall for a decorative finish

faucet


My concern is that It's not going to quite have the 'rounded' look that I want, particularly on the outside.  Do you folks have any suggestions for improving this design?
Both of these designs use the same faucet piece and legs can be easily attached beneath, the issue with most of these designs is that parts are mostly in white as those parts are more common than gold. If you are set on the colour you will be fairly limited in terms of pieces but there are some ways to change the colour of bricks with some limitations.
This design by Elspeth De Montes uses the (Studs not on top) techniques to get that smooth look without any exposed studs on the top. It uses a 1 x 2 x 5 brick

This design by Ryan Smith has a similar shape but with studs on top.

You might find more relevant designs by searching on Flickr rather Google images for example.