Your experience may differ, but I tried a community college painting course and all it taught me was how to mix colors. Figure painting techniques are much different. You need to get involved with figure painters - they'll teach you. Most are very open with how they do things and you will learn quicker and with less frustration. Also go to figure shows where you can meet other painters - it's like a Phd in painting. The 2 closest shows to you I can think of - I'm on the other coast! - are Tulsa and SCAMMS. SCAMMS is history for this year, but Tulsa is in the early summer.
Oils and acrylics use different techniques. Acrylics shade by using increasingly lighter washes; oils allow wet-on-wet shading in which you actually mix a lighter/darker color into your base while it is wet on the figure. The tutorial below tells you what to do but not really how to do it.
My main computer is in the shop right now -expected back early next week. I'm sure I have some articles on oil painting I can send you. I will PM you, if you like, and transmit them to you directly. You will also find some painting materials on the BFFS web site and a German site called "HZ Forum" - look under flat figures. Google automatically translates the pages from German - turn on your translator. Any Article you can find by Greg DiFranco, one of the best US painters, will help too. If you go to Planet Figure, or Timelines Forum or Cool Mini Or Not (Articles section) you may find some oils instructionals too. Just google these names. They are figure painter sites.
The basic technique I use is to prime in white, then block in a coat of base color (as close as possible to by oil color) in acrylics. This is called the "oils over acrylics method." The acrylics sop up the excess oil and avoid transparency problems that can happen with oils that are too transparent. After that dries thoroughly, I then repapply each base color in oils and then do the first shade and highlights wet-on-wet and let that dry. (I shade and highlight with complimentary colors to keep the colors rich.) Then I go in and strengthen any colors that dry too light from the first round; then I apply the darkest darks and lightest highlights. Let that dry. Then adjust from there.
When you dispense your oils from the tube, put them on cardboard, a paper towel or other absorbent surface and let the excess oil carrier base leach out for about a half hour. Then shift them to your palette. Oils should be mixed with a medium, mineral spirits or another solvent (I use odorless Turpenoid) until they are the consistency of skim milk. Apply them this way and they will dry quickly and will not build up on the figure. You can put your palette in a plastic food storage container and store it in the freezer. Next day, let it sit out for 10 minutes and you're ready to paint.
Painting with oils is like applying makeup. You need two brushes - one to apply the paint and one to blend. Apply a very, very, very, very TINY amount of paint with your applicator brush and then brush it out fully with your blender brush. It's truly amazing how far this stuff will spread - like a toddler with a cookie!! Examine the results and repeat as needed. Too much paint - and you're screwed!! To do a wet on wet, put even a smaller amount of color on the wet base and brush it out. When blending two differnt colors, use a jabbing motion with your blender on the edges/joins to achieve an even blend then brush our gently. Always use your blender brush completely dry - if you wet it with solvents it will not blend just make a mess. I might have 6-8 brushes going at once sometimes - two brushes for each color I'm painting. Being an idiot, I've color coded the handles so I know which brushes go with which color.
To dry my oils I always use an old crock pot - resrved exclusively for painting. I set it on low, put the figure in, and leave the lid adjar. The oils will dry completely flat in about 6-8 hours. If you let your oils air-dry it can take days!!
Well, I hope this is helpful and gets you started. I'm glad to send you some files later next week, if you like. I better cut this message off or they'll have to change this from the Treefrog Toy Soldier Forum to the Oil Painting Forum.
check this out:
http://www.coolminiornot.com/forums/showthread.php?t=37231
A number of good articles here - just "scale them up" to what you are doing.
http://www.coolminiornot.com/go.php/go/articlephp/levels/99/expand/all?
Phil Kessling is a master painter - and a hellava guy:
http://www.timelinesforum.com/index.php?page=paintingoils1
check newbie forums too:
http://www.planetfigure.com/forums/forumdisplay.php?f=32
El Greco Miniatures has some great articles in cluding this one by my friend Stephen Mallia
http://www.elgrecominiatures.co.uk/index1.html Look under tutorials/Wounded Macedonian CG117
Good luck.