Um...define complex. Dogs and wolves are pack animals, and hunt as a team. Have seen dogs use misdirection and one serve as a decoy for the others to carry out a plan. That makes sense from the pack hunter aspect. Is that complex planning?
Have seen some dogs and cats display a sense of their aesthetics. This gets into anecdotes and won't bore you, but there seems to be patterns and things pleasing to them. Such as moving a dog toy only for the dog to move it back to that position. Why did it want it there? For what purpose? Something that made sense to it, or it wouldn't consistently put forth that effort.
As to morals, what is sophistication? Here's an anecdote: We had a dog injured from chasing a car. He knew he wasn't suppose to chase cars, but did. When we called the vet, the dog displayed shame. Another anecdote: Was hunting and had a rare chance to stalk a deer. Was within range when the dog with me flushed it, then turned around and looked at me like "Shoot!" Then he realized he was was between me and the deer (I had a shotgun). Without me saying a word, he lowered his head, tucked his tail between his legs, and slowly walked back to me. He walked that way all the way back to the house. He knew he's done wrong, and felt bad about it.
Is that a sophisticated moral idea? Don't know. Only know that it is and animals are fun to just watch, even without anthropomorphizing their actions.
