VERY NICE! Congratulations! I don't know a lot about this one; but, I think a multigrowth plant will produce more blooms per stem in the future. That being said, these are a good size, form and colour. If the photo is the correct colour, the foliage does look a bit too yellow. Try lowering the light intensity and/or adding some Epsom Salts to the fertilizer water (1 ml per liter). I find my plants become pale/yellow in the summer, when light is strong, unless I add the Epsom Salts from early April through to the end of September.
So glad you got this and that it's bloomed so well for you!