Tiny Shells Coaster, free pattern

This flat circle, which can be used as a coaster, is the first 5 rounds of a premmie beanie I'm working on. Please let me know if this coaster pattern is not right! I'm hoping to share the premmie beanie pattern with you very soon.

5 rounds of a flat circle in yellow and blue

~ Tiny Shells Coaster ~
worked in 5 rounds, gauge is not needed, hook and yarn determine the size of finished coaster
(I used 3.5mm hook with 8 ply cotton)

1. (main colour) ch 4, 16 dc into 1st ch, sl st into 2nd dc tucking the starting chain behind the last dc
2. (3 hdc in next, sl st in next) repeat 7 more times (8 small petals), cut yarn and fasten off
3. (contrast colour) sc in 2nd hdc (sk hdc, 3 hdc in sl st, sk hdc, sc in next hdc) repeat 6 more times, sk hdc, 3 hdc in slst, sk hdc, sl st into 1st sc, cut yarn and fasten off (8 tiny petals)
4. (main colour) sc in 2nd hdc (sk hdc, 5 dc in sc, sk hdc, sc in next hdc) repeat 6 more times, sk hdc, 5 dc in sc, sk hdc, sl st in 1st sc, cut yarn and fasten off (8 scallops)
5. (contrast colour) sc in 3rd dc of petal (sk 2 dc, 5 dc in sc, sk 2 dc, sc in 3rd dc of petal) repeat 6 more times, sk 2 dc, 5 dc in sc, sk 2 dc, sl st in 1st sc, cut yarn and fasten off, weave in ends (8 scallops)

Please let me know what you think!