A few writing systems of mine from over the years.
Abetok: an abjad with a nice looping feel.
Axionn Script: not unlike the Dēvanāgarī script in form or function.
Barkaloanan: the first full script I ever made, with a huge number of ligatures but little else going for it.
Halmerian Runes: created for a client, halfway between Tolkien’s Tengwar and standard Futhark runes.
Hansemic Alphabet: a script resembling in style (if not nature) Hebrew, derived from an earlier abugida.
Hercuan Script: a Mongolian-style alphabet, derived from an earlier logographic script.
Kisimbi Syllabary: written on palm leaves and derived from old Mayan-style hieroglyphics.
Malehinese Syllabaries: two scripts, one used for common words and one used for holy and/or government-sanctioned words. Derived from earlier multi-syllable glyphs, some of which continue to be used to this day.
Nekortian Cuneiform: structured like Egyptian hieroglyphics (multiple consonants to a glyph, arrangement is key).
Salvian Hieroglyphs: a logographic script with added constructions to mark specific changes to the root.