I was practising some lips. I am finally a bit happy with them. So I also made a tutorial for you guys! It's a shiny lips tutorial. I'm in a totally tutorial mode, I'm so sorry, but I will upload other Art to^^
well, it's all about fail and try again I use Mouse in photoshop since CS 8.0, I should have got good skills but it's too hard u_u and wacom tablets are quite expensive T_T (at least in my country... Or I don't know anything about prices XD)
I don't know if this is any better but you can always use an iPad? There is a fabulous app that I sometimes use called Procreate, its is nowhere near as in-depth or as good as Paint Tool SAI or anything but with a good amount of skill you can get by. There are lot of other more expensive apps you can get too, and many can also be used with mobile devices like iPhones and such. Wacom Tablets are, in my opinion the best, but an iPad may be worth trying out.