Let me start by saying those colors are beautiful, especially the blue and purple. That blue Tele is absolutely gorgeous...great color choice.
After 6-10 clear coats do a light wet sand (with 600-800 grit) to level the finish (get rid of "orange peel"). Yes, the finish will still be bumpy even after 10 coats of clear. You will never be able to put on enough clear to leave a smooth finish without sanding in-between coats. You have to be extremely careful and check often to make sure you aren't sanding into the metal flake. Obviously this process should start in a less conspicuous spot until you get the feel for it. If you are sanding too much, the metal flake will start to look silver before you actually get the finish flat. DO NOT sand any more! Do another 3-6 coats clear (no more than 3 coats per day an hour apart) and let it cure for 2-4 weeks then level sand wet. If you can get rid of all the orange peel and it's flat and smooth and no silver metal flake edges showing, then final sand up to 1500 grit and buff. If not, then repeat (apply a few more clear coats, let cure, sand, buff). If you don't have a buffing wheel dedicated to guitar finishing, sand to 5000 grit (800, 1000, 1200, 1500, 2000, 3000, 5000) then hand polish with medium then fine polish.
Yes, finishing any guitar is time extensive, but finishing metal flake is ridiculously extensive. Yes, you use a LOT of clear when doing metal flake. Yes, you spend a lot of time letting the finish cure. Yes, there is a lot of sanding. And yes, the finish will look gorgeous when done.
Note: this is for lacquer. If you're using poly the technique is WAY different. Apply 4-5 coats about an hour apart BEFORE any of the coats cures. Each successive coat will be applied when the previous coat is still sticky. Then let it cure a week or so before sanding and polishing.