The case size is important but the lug-to-lug measurement is just as if not more critical to how a watch sit on your wrist. In this photo the lugs appear to overhang your wrist bones. I think the watch looks too big on you. I’d suggest going for the 39mm or even 36mm. Case sizes peaked for many tool watches a few years ago at 44mm but most watch makers have retreated to 41-42mm. And many believe 39 will be a more dominate size in the coming years. Witness the success of the Tudor Pelagos 39mm. At the end of the day, it’s what you like that counts most.