DAK Tigers look good in a basic Dunkelgelb (Dark Yellow). If you use Tamiya acryilcs, lighten the dark yellow a bit with flat white. Some of the DAK tigers I've seen have a slightly more yellow appearance than Dunkelgelb. Add a little flat yellow to "Yellow it up". Some use a 50/50 mix of Dark yellow and Desert yellow. It's not precise, just a matter of taste.
For a newbie, go easy on the weathering. After you spray the main coat, lighten the color slighlty and very lighty ht panel centers and upper surface. It's an easy way to replicate sun-fading. You might want to do the turrest top and spaces on the upper hull even lighter. It's sunny in the Desert!
Drybrushing can be fun and effective, go easy until you master it. I'm ok at some, but overall drybrushing I have yet to master. I've built about 150 armor kits.
Washes are an art all by themselves. Don't do what I did, and try all the techniques right away. Master a new one one every few kits. A good one to start with is pinwashing around raised details. I always start with the bottom of the hull, so I can get the "feel" of how the wash will flow before I commit to more visible surfaces.
One place it is pretty hard to screw up a wash is on a track run. You can flood on a rust color after your main color dries. It looks pretty good settig into all the cracks and crevices.
Do not wash with the same chemistry of your base coat. I use acrylics and seal it with future for decaling. Another future coat to seal the decals, then oil based washes thinned with turpenoid. Next, a coat of Dull cote to kill the gloss. Lastly pigments, sometimes a little drybrushing.
Pigments are pretty easy. I'd just rubb on a little dry at first to "dust things up".
I've learned most of this through articles in FSM and on this forum. I'm not the artist some of these guys are, but I truly enjoy learning from them.
Hope this helps. Have fun with the kitty.