Looks good, are those compatible with Ducky shine 4?
I have tested this 104 keys set on a ANSI Ducky Shine 3 Cherry MX Black k-board. So it will fit on a ANSI Ducky Shine 4, Duckys own keycaps sets will fit on Shine 2, 3 and 4. I don't have a Shine 1 k-board just some Shine 2, 3 and 4 k-boards.

The up,down, left and right arrows (Qwerkeys), blue + the 4 (Qwerkeys) over numpad caps don't belong to the set from SP. The blue caps are from SP:s transparent blue 13 keys kit.
My Ducky Shine 4 SCE Cherry MX Brown/Clears bought on Massdrop.
The Brown/Clear switches.

My Ducky Shine 4 69 Edition Fire Version (the switchtester) with 9 different switches and Galaxy Class keycaps set from Massdrop. The spacebar is Duckys 69 own.

Ducky Shine 4 69 original keycaps set.

Edit: Don't know about the link LechnerDE linked keycaps design but some of mine keycaps are not standard keycaps design.
I bought mine sets last year.