You currently have #38 lands. I find that with adequate ramp, you only need about 35. I've never liked
Murmuring Bosk, except maybe in a treefolk tribal deck. Pain lands a so unnecessary.
High Market is another overrated card. One life is not very useful in Commander. And you're not looking for sac outlets. You don't seem to be trying to target your opponents things.
Arcane Lighthouse may be of limited utility to you. And
Vesuva is only going to help you if your play group play a lot of utility lands that you would like to copy.
I put
Fertilid in the same category as
Realm Seekers. It is 5 mana before you get your first land out of it.
Gyre Sage is similar in that it will need to be evolved a couple times before you are ramping mana.
Crystalline Crawler is good in that it can
regenerate its counters (and you're in a counters deck). A key to successful mana ramp is minimal mana investment. Here are my favorites: (for black/white/green)
Birds of Paradise - CMC=1; makes mana of any color
Rampant Growth - 1 land for only 2 mana
Kodama's Reach - 2 lands for only 3 mana
Cultivate - 2 lands for only 3 mana. (Same rules texts as
Kodama's Reach)
Tempt with Discovery - 1 land (need not be basic!) for each player at the table - disclaimer: only works if your play group is actually tempted.
Land Tax - CMC=1; gets basics every upkeep
if you wantCommander's Sphere - while not hugely effecient, it does draw you a card if you don't need the mana
Solemn Simulacrum - land fetch and card draw!
Krosan Verge - 2 land fetch
Most mana ramp only gets basics, so you need to keep your basic land count up for maximum effect. I find that 4 of each color (total of 12) is usually good. Go higher if you want. With this strategy you also won't need such a critical mass of duals.
Evolving Wilds and
Terramorphic Expanse also work well when you have a bunch of basics.
With this type of build strategy, a bunch of basics and a handful of lands that make mana of any color (like
Transguild Promenade and
Rupture Spire) along with just a handful of duals can be just as effective as a mana-base with all the expensive duals and fetches.
Also, always (even more-so than
Sol Ring) play the 2-mana bounce lands from the Ravnica Blocks. For you, those are
Golgari Rot Farm,
Orzhov Basilica, and
Selesnya Sanctuary.
Hope this helps.