Keep in mind this is a continent based, 9th AF bird. Unlike the 8th AF Groups based on permanent bases in England, the resources to keep the paint jobs up to date was much less. Also in the ground attack role, these birds took a lot of hits, and had a lot of turnover so replacement parts may at the time of one photo not have been painted to match. Most likely the left spinner was a replacement and hadn't been painted. The 38s in particular bounced around too. As the 8th units transitioned to 51s, the 38s went to the 367th, 370th and 474th or even transferred to 15th AF 38 Groups. In the ETO the 474th was the only 38 Group until the end of the war, so they got hand me downs from the 367th and 370th. More often than not, the nose art wasn't removed or changed.
So you'd see 474th 38s flying with 367th or 370th unit markings. Again, they attrition was great in the ground attack role. They had to keep up the ground support as well, so having time to get the planes painted was way down the list.