Opinions will apply here. This is where your prayer seeking the guidance of the holy spirit will come into play. This verse may help you think on things a bit.
Philipians 4:8-9 (the whole chapter is good)
8 Finally, brethren, whatever things are true, whatever things are noble, whatever things are just, whatever things are pure, whatever things are lovely, whatever things are of good report, if there is any virtue and if there is anything praiseworthy—meditate on these things. 9 The things which you learned and received and heard and saw in me, these do, and the God of peace will be with you.
If dressing modestly and taking that step further in your walk with Christ is important, we must look at each and every single dress and consider it. Why do you like the dress? Because it's flattering? It makes you feel confident? It has beautiful colors or patterns? Why does it make me feel confident? Why is it flattering and what does flattering mean to me? Does flattering mean that it fits my figure and flaunts it, hides certain problem areas of my body? Both? Would others look at this dress on me and think of me as a Godly woman or could they get the wrong impression? Does this dress honor God? Am i comfortable wearing this dress in front of the Lord Jesus Christ? Would this dress entice men?
I am not saying you're stuck with Maxi dresses and Pants. Just prayerfully consider the clothing if you feel drawn by the Lord to consider your modesty.
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For example, on my beautiful fiancee, i do not like dresses that do not come below the knee. All her dresses must come below the knee, otherwise it bothers me. Halter dresses (where there are no sleeves i assuming) do not bother me as long as her cleavage is covered up. If she wants to wear a dress that goes above the knee, i like leggings that are not see through. She looks as beautiful as ever, and i feel she is dressing modestly. This is my personal taste and she is kind enough to do these things for me.