I am assuming most of your deer are going to be coming from the timber to the north. If this is the case, it looks like you have just a bit of timber where the corn and first grass field meets. I would start right there. Being from MI, you should have standing corn for at least a portion of your archery season. I grew up hunting corn fields in IN and love hunting standing corn. You could be in pretty good shape.

How tall is the grass fields? Are deer using them to bed in? Do the grass fields provide enough cover for a ground blind? I would start check the fields out in the evenings right now. Stay away and use either a spotting scope or good binoculars. Determine where your deer are entering the fields from and determine where they are going once they hit the fields. Then, if the grass fields provide enough cover, get yourself a good ground blind and get it set up to cut them off. Good luck this season!