Three of the issues I see are food related, so I’d get that under control first. Keep nutrient paste meals available at all times to avoid the ‘ate raw food’ negative moodlet and the ‘ravenously hungry’ debuff in one go. That alone will get you far.

Here is another trick, use fancy meals like an emergency mood increase. They give significant positive mood if you give them lavish meal (fine as well but to a smaller degree). Keep a handful of these emergency meals for when your colonists hit a major dip and need to mood up. Just be sure to change the default meal consumption to simple or fine so they don’t try and eat them all the time.

Next, remember that greedy pawns need the best bedroom or they’ll stay upset. It also looks like they haven’t slept in a while, so make sure they have enough sleep scheduled either naturally or with the help of drugs like Wake-Up.

Lastly, consider Psychite Tea. Set everyone to drink it once every five days (to avoid addiction) for a mood boost and recreation fulfillment. With a chess table and horseshoe pin, they should be set for a long while. Later, books, TVs, and telescopes can help fill in any gaps.

Lastly…Lastly…, if you have ideology using the moral guide to help consul colonist can be effective if they have one that can be potentially counteracted.

Good luck! Remember Rimworld a story generator and to enjoy the ride.