I have the same pattern as yours , look at picture section under place mats was going to use monifliment but decided to use regular thread instead as they will be in the wash. on the other hand my wall hanging in pictures under curved piecing I used the mono thread worked great for me , I used size 9 needle with regular thread in bobbin lowered my top tension to 1 . Yours will look great if you decide to outline eack item in the picture using coloured thread accordingly, good luck.