dupes - here are a few weathering suggestions...this is what I would do, and don't feel you have to do any or all of these things...I've been doing this for a little longer
First, throw some washes on those tow cables, and paint the cable brackets the same color as the surrounding hull. Also paint the barrel cleaning rods (mounted between the looped cables) a wood color.
You've got a pretty bright finish there, and while that's accurate for Fall-Winter '44 Tiger II's, some pigment dusting would bring it together really nicely, especially the tracks and running gear. I don't know if you're opposed to a heavier mud effect, but that can be done easily by applying turpentine to the intended area, then applying pigments over the wet coat. This makes really good mud and you can control the thickness by varying the amounts of turpentine and pigments. Be careful to use a color that's not too bright - MIG pigments almost always are if you use just one color. I usually mix Rubbel Dust, Industrial City Dirt, and Russian Earth to get a nice grayish-tan, blah sort of color
An overall light dusting of pigments will help, too.
The above is what I did on my last Tiger II...
Obviously my camo colors were more muted to begin with (yours are fine for the time period, this is a later vehicle) but some pigments would still improve yours a good deal, I think.