You sound vely vely Amelican. :) Applause
Now, big brick: Your previous one sounds clearer. This one loses that "crisp" sense and sounds surpressed. Which one do you prefer? :) Personally, I like the previous one. I suggest you not force the liasons. They are not mandatory.
Small brick: san(d)wich, although the d in this word is silent, it should not be completely eliminated. It is not "sanwich". Position your tongue ready for the "d" sound yet not make the sound. This fraction second of pause is what you need there.
