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. 
Please take a look at the sewing tutorial for this pattern:
 
https://www.youtube.com/watch?
v=pCPIcQP8dM4&t=322s&ab_channel=Soulmatte
 
Made for a regular A4 printer. 
14 pages.
 Instant download.
Suitable for beginners.
Without seam allowance. I suggest adding 1 cm for seam allowance
It requires about 32 inches or 80 centimeters of the main fabric.