This is very similar to what I would do I think.
have not come across anything that I believe would be in my skill range.
I've read a lot of painting tutorials too and most are completely unhelpful, especially
GW ones. They usually follow the format of...
Step 1: Undercoat
Step 2: Add basic colours
Step 3: Make it look awesome (
WTF how?)
Step 4: Finished
I spent a lot of years stuck between steps 2 and 3 :/
If 'skill' is something you feel is holding you back, then I'm guessing you might be in the same place, so perhaps some general advice and techniques would be helpful, along with a system to paint Blood Letters.
Firstly make sure you have pallet or a plate or anything that you can mix your paints on. Don't paint out the pot, because the pot paint is nearly always too thick, and will fill all the nice little details and gaps up too quickly and look rubbish... So get some water on your brush and mix it round on the plate till it's the right consistency.
I would suggest base coating Blood Letters in white as this will give you better brighter colours. Black will leave you fighting against the dullness, and I don't see that the Blood Letter models have the kind of details that warrant a black undercoat as they are quite smooth skinned (as opposed to something like wolves which have a rough and furry surface). Or you could go straight to red if you don't mind them being a bit darker. In any case you want them to end up red... Blood Red is fine.
Next thing is to wash with a darker colour. I would suggest something like scab red with a little bit of black mixed in, but blue or purple or brown would work also.
You don't need any special washes or anything like that. Just mix the darker paint on your plate with a little water and apply it with a wet brush (i find a small brush gives better result). If the paint stick to the raised areas then dab on a little more water with your brush until it runs off and collects in all the nooks and crannies, hopefully resembling shadows. then leave it to dry.
When it's completely dry you can dry brush over it again with Blood Red to make it nice and red again.
Then it's just a case of highlighting and adding details... Which is easy to say, but maybe not easy to do. So here are some tips...
For fine detail remember that water is your friend... Tiny things like eyes and nostrils are easy to paint if you get your paint watery and let it run in, rather than trying to force it in with the brush and accidental going over the edges... you can't really go over the edges with watery paint because it just runs back in the gaps (and you can wipe it off easy).
For other fine details I would suggest you get hold of some acrylic paint retardant which you mix with your paint to stop it drying too fast. I cannot emphasise enough how much you need this stuff.
What tends to happen with fine details is you get your finest bush, get a tiny bit of paint on it and go to paint your mini... but somewhere between dipping the brush and painting the mini... the paint starts to dry on the brush. Then when you try to paint the paint won't flow off the brush properly. The only solution is to press harder and drag the brush... which of course doesn't work as it ends up looking like to paint has been scraped on with a trowel... alternatively you can try to load more paint on your brush so it stays wet longer, but this also fails for obvious reasons.
Retardant really helps with this, it keeps the paint wet and flowing so you can make nice tiny lines like all the pros.
For highlighting, you could dry brush the highlights on, I know you want to, cause it's easy... but I don't like dry brushing myself, as I think it leaves models looking dusty and while it does pick out details nicely, it will also pick out brush strokes, paint texture, and any lines from the mould that you missed with your file, which is bad.
So I recommend doing highlights by hand... again retardant will work miracles for you here. It allows you time to blend highlights into the base colour... which is usually impossible unless you live in a really humid area. For Blood Letters I would suggest Blazing Orange for highlights and maybe work it up yellows or off whites for the very brightest bit of the highlight (brown + white).
Obviously the other details are up to you... but you will find all things much easier if you keep in mind some of the tips here.
Alright. So I have looked around at many "How to Paint Bloodletters" tutorials but have not come across anything that I believe would be in my skill range. Does anyone know of a more simple way to paint the using layering/drybrushing/washes? 
"...where Astarters of lesser chapters wear the Emperor's Aquila. We do not wear His symbol. We are His symbol." 
Necrons 2000+
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