Beautiful in Cantonese

There are at least two ways to say "beautiful" in Cantonese:

1. 靚 ( colloquial;  means good-looking  as in 靓相 pretty photos; high quality or high class as in 靓车 - good cars such as Lamborghini  or Porsche ) 
2. 美麗 (美丽)  (beautiful, not just pretty; formal;  sometimes shortened to  just 美.   so 美国 can mean beautiful country)
3. 好好睇  (very good looking )

Examples:

1. You are so beautiful!   你好靓！

2. I don't need those beautiful lies!  我唔需要美丽嘅谎言。
Note: tell a lie = 讲大话 (colloquial.    lie = 大话  literately mean "big talk" ).    谎言 means "lie(s)" and it's very formal.
However, we do use 美丽的(or 嘅 )谎言 is a set phrase or idiomatic phrase  for "beautiful lies".

3. 你种嘅花好靓啊！  The flowers you are planting are very beautiful (pretty)!

4. The skirt you are wearing is pretty good looking.  妳着紧嘅条裙都几靓喎  nei⁵ zoek⁶ gan²Â ge³Â tiu⁴ kwan⁴ dou¹Â gei²Â leng³Â wo³

5. You look  beautiful with this pair of glasses.   你戴呢副眼镜好好睇喎。 nei⁵ daai³Â ne¹Â fu³Â ngaan⁵ geng³Â hou²Â hou²Â tai²Â wo³

6. Your eyes are beautiful.  你嘅眼睛好靓！