Make labels all the same width so that the form fields line up.
Give a single class to all of the labels for select elements, textareas and the two paragraphs before the radio and checkbox elements. In the style sheet use that class to set the width to 15rem so all the fields line up nicely. Unless you are very clever that will not work so try to remember why (if you cannot click here and read the last bit).
Set the height and width of the textarea elements so that the users have enough space to type.