it is pretty FORmal -> 'formal’ 的第一個音節偏‘鄂’ 音了，應稍微偏向‘奧’音： 'formal /fc ml/ not /fuh ml/'。
in my size -> 'my' 的元音應飽滿，否則有點 /e/的音了。'my' needs to be fully pronounced (not stressed though.)
do you think thiS Sweater -> 兩個‘s’在一起的連讀，讀一個s音，但要相對長一些. 'this sweater' : the linking of the two 's', ie, the sound 's' needs be a little bit longer to show that there are two 's' here.
look good on me -> 'look good' seems strange here. ' look’ 的音節偏‘鄂’ 音了，應稍微偏向‘屋’音
What length of skirt -> 't' 音在這兒最好失去爆破，'of' 音弱讀成'v'音比較好。 't' in 'what' needs be unexploded (unreleased); 'of' be weakened as 'v': Wha(t) length'v skirt.
basic patterns -> 'basic' be less stressed than 'patterns'
He had to go return a gift -> had to go RETURN a gift
They have sold out the brand -> They uhv sold out the brand
How much -> rising tone is better than that of falling tone here;
