The anime got better after the first few episodes. They realized pretty quickly that the closeups look weird in CG, so most of the face or talking shots are hand drawn now, and that goes a long way towards correcting the major issues.
It is weird that the women can be naked for an entire episode and have no nipples… but I guess its because they're naked the entire episode and not a 2 second shot.
If it really is getting a second season then that makes it all the more a shame they skipped an arc... but its easy to understand why... it would have been really awkward to spend tons and tons of episodes away from Caska after the long time cliffhangers of the eclipse in either the movies or the old tv series for anyone that didn't read the manga. And including the first arc or the lost children would have padded solo Guts quiiiiite a bit.
So understandable, but unfortunate.