I swear I didn't start before :)
I would say it's 4 hours / day on 3 days, mostly drawing. I spent 2 hours max on programming, there is not a lot of codes at the moment. I drew one cat, and the other cats are very close to the others. The map took me a lot of time, but I knew before starting the jam how the house would be. The polaroid took me one hour, maybe two.
And thanks for the feedback !