I somewhere pointed out (probably it is in my book) that Psalm 144 mimics but does not quote Psalm 8. Also they are the only two psalms to mention fingers. A third rare form joins them: the Hebrew for thy heavens. I have found this form שמיך (shameika) only in these two psalms and Deuteronomy 28:23.
Do you see other places that I missed? Are these connections in the Psalter helpful in recognizing that the Psalms are not a random collection, but a real story in poetry.
The image shows the significance of the acrostic poems in the overall form of the Psalter.