Step 25 make tiny additional details with brown RI
Step 26 make final lines on window with white RI
Step 27 Step 28 outline cookie with thick RI .
flood each section with thinner RI
Step 29 Step 30 Step 31 Step 32 smooth the RI with a cookie scribe or a toothpick . Allow to dry for some time
Use different RI colors to create dots on the tree
Use sanding sugar
For more decoration use sprinkles