Beetle, I'm not sure I'd agree...yes, you would lose a bit of yield settling on the sheep, but the crab wouldn't be workable (you'd still get the lux...eventually, but so would the sheep site (even more eventually, 5th vs. 4th ring)) and you would also lose the fish SW of the lost sheep tile...plus Venice would be MUCH more exposed to sea attack. On the other hand, there is apparently some sea resource 3 tiles South of your preferred site (you can see a seagull's wing, and they only hang out over sea resource tiles) and there might be some offshore oil in all the extra sea tiles you'd pick up over the always terrible snow and ice tiles...it just depends, I guess...
A slightly larger screenshot (with a little more of the fog removed) of the vicinity might make the decision easier...
Crus8r