Do the last two seasons of Berserk contain nudity? I want to start watching Berserk, but at the same time, I prefer not seeing explicit nudity.

Do the last two seasons of Berserk contain nudity?
The manga did contain plenty of nudity, and also features both consensual and non-consensual sex.

After quickly skimming through several parts for the last 2 seasons, I can confirm that it contains scenes where fully and partially naked people present. 

This part of the story also features a 'naked elf' companion, which will be featured throughout most of the season, as he travels with Guts.

Judging by the IMDB Parents Guide, there are at least 10 counts of sex and nudity. However, IMDB also makes mention this is the rating of the uncensored version. Hence if you are not a fan of such things, I would suggest you watch the censored version.