I haven't made that many gp roses but .......
Overall it looks pretty good. I suggest the center petals should be thinner - especially the tips. Also the bottom/last row the petals should be a bit shorter & more of them.
Thanks Kakeladi. Maybe 2 more rows of outer petals?
AUse gumpaste. The petals can be rolled thinner and it's easier to soften the edges for a more realistic look.
I made most of my 'gp' flowers from fondant. If you knead in some Wilton's dry gp mix (fiddle - can't remember the other stuff used to make gp) it strengthens it so you can roll it & get those tips thinner :)
I don't think you need 2 rows of bottom petals, but make the ones used shorter so you can put 2 or 3 more on there. Looks like you have 5 there now. Use 7 instead. That's just my opinion :)
Oh I gotcha. Thanks!