If You are interested in this type of leotard - bodysuit, this is the pattern in sizes  XS, S, M, L ( EU  34, 36, 38, 40, 42). 

The Pattern is in PDF format. You will need to glue on some details together. The patterns don't include a tutorial on how to sew 

Made for a regular A4 printer. 
14 pages.
 Instant download.

The decor is not included.

Without seam allowance. I suggest adding 1 cm for seam allowance

Bodysuit pattern heart neckline