I am practicing making buttercream roses and just wanted to share my progress so far.

Is something wrong with my tip that the edges of the petals are coming out like that (jagged)?

https://www.cakecentral.com/gallery/i/3353658/american-buttercream-rose-cake

This is one  of my favorite cakes with piped buttercream roses.  Some petals are jagged, some are smooth, and I like them all. In my gallery I've piped roses with Easy foolproof Mock Swiss meringue buttercream, Lauren Kitchens mock Swiss Meringue Buttercream, old school cooked Swiss meringue buttercream, & the roses in this photo attached with regular American Buttercream.  Some of the little toothpick roses on the cookies were piped in royal icing with tiny PME tips.

https://www.cakecentral.com/gallery/i/3376601/red-rose-wedding-cake-cookies-mbalaska-8202016

They all work.   I like the jagged edge as well as a smooth edge.  That's just me, & it's just FOOD first and foremost.

tips:    for flowers to be piped with American buttercream don't overbeat, don't add a lot of liquid, don't add extra powdered sugar.  Add a spoon of meringue powder.  If you have hot hands, You can fill 2 bags with icing, Keep one aside on the counter, or in the fridge to cool, then swap out the hot one; as many times as needed.

You can also stick a table knife inside your medium sized rose tips and slightly spread out the hole.  making the icing amount that piped out just a bit thicker.      

if you cup your index finger around the very edge after every piped petal you can put a little fold in there that looks very realistic --

try a taller base -- make a few layers of icing on top of each other in the spiral there for the center --

there's a progression as to the angle of the tube -- it starts out with the narrow part angled in and the fat part angled out from the middle of the nail for the base and first bud then it slowly angles out a little more with each layer of petals -- like if you held the tip at 11:00 12:00 then 1:00 but toward the nail top -- that might not make sense but you are just about doing it anyway -- you just need that taller base --

check the tip of your tube and make sure there are no lumps in there -- stick a pin in there to clean it out --

you really just need a taller base -- you 'bout got this

yeah -- what she ^^^^ said!!! 

Thank y'all so much for the advice and for the honesty. Great feedback!

Today's practice with a new frosting discovered last night. Korean glossy buttercream or GG cakraft buttercream.z

Today's practice with a new frosting discovered last night. Korean glossy buttercream or GG cakraft buttercream.z

looking better and better and better -- well done, you!

better and better.  They will look great on your cakes.

I work with buttercream all the time and your roses look just fine. I like them. Can't wait to see them on your cakes. :)

See practice will make perfect.  I see a good improvement

Here is an update on rose practice. I made this cake for my daughter's 13th birthday today.

They look wonderful!  Great cake!

Very Pretty!!

looks nice, love the colors

Your flower cake looks beautiful.

 Bumping 

Thank you all.