This may sound tidious. The first thing I would do is go back and back stitch all the seams along the edges. The next thing I would do is spray the whole top with Best Press spray starch. Make sure you follow the directions. Then I would add a narrow border to tame the perimeter. I would go to your local quilt shops and check out the completed quilt samples to see if you like the work. Ask them for the name of the ones you like. Call them. Yes them. The long arm quilters typically charge 2-5 cents a square inch. Extra charge for detail because they would have to reload the quilt or additional handling. When the long arm quilter looks at your top he/she will answer all your concerns. Don't be shy to ask them if they have done portraits before as well as their turn around dates. Some quilters only do all over meandering. Some only use whatever is programed on their long arm computer. While others do free hand. Most will do a little of all two or three. Go with your gut instinct about what the quilter tells you. Yes, you will need to add a batting. It is one of its functions. The quilter will be able to recommend which type of batting. Try this first before you go outside of your area. It is very expensive to ship a quilt not to mention leaving your baby to the hands of unknown strangers. If you can't live without the quilt then don't enter it in a show. Your quilt is not a perishable. Even insuring when shipping doesn't replace the quilt. You would still have to make another one. Good luck finding those perfect fabrics again.